Home / 56,742.10-85,113.15-51,298.90

Finding the Fourth Proportional to 56,742.10, 85,113.15 and 51,298.90

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Solution

The fourth proportional to 56,742.10, 85,113.15 and 51,298.90 is: 76,948.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,742.10 : 85,113.15 = 51,298.90 : x
  2. Step 2: Convert to fraction form
    56,742.10/85,113.15 = 51,298.90/x
  3. Step 3: Cross multiply
    56,742.10x = 85,113.15 × 51,298.90
  4. Step 4: Simplify right side
    56,742.10x = 4,366,210,970.54
  5. Step 5: Solve for x
    x = 4,366,210,970.54/56,742.10
  6. Step 6: Final answer
    x = 76,948.35

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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.