Home / 49,746.60-74,619.90-39,905.10

Finding the Fourth Proportional to 49,746.60, 74,619.90 and 39,905.10

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Solution

The fourth proportional to 49,746.60, 74,619.90 and 39,905.10 is: 59,857.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,746.60 : 74,619.90 = 39,905.10 : x
  2. Step 2: Convert to fraction form
    49,746.60/74,619.90 = 39,905.10/x
  3. Step 3: Cross multiply
    49,746.60x = 74,619.90 × 39,905.10
  4. Step 4: Simplify right side
    49,746.60x = 2,977,714,571.49
  5. Step 5: Solve for x
    x = 2,977,714,571.49/49,746.60
  6. Step 6: Final answer
    x = 59,857.65

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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.