Home / 74,714.40-112,071.60-56,999.70

Finding the Fourth Proportional to 74,714.40, 112,071.60 and 56,999.70

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Solution

The fourth proportional to 74,714.40, 112,071.60 and 56,999.70 is: 85,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,714.40 : 112,071.60 = 56,999.70 : x
  2. Step 2: Convert to fraction form
    74,714.40/112,071.60 = 56,999.70/x
  3. Step 3: Cross multiply
    74,714.40x = 112,071.60 × 56,999.70
  4. Step 4: Simplify right side
    74,714.40x = 6,388,047,578.52
  5. Step 5: Solve for x
    x = 6,388,047,578.52/74,714.40
  6. Step 6: Final answer
    x = 85,499.55

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.