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Finding the Fourth Proportional to 63,484.16, 87,613.80 and 40,877.16

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Solution

The fourth proportional to 63,484.16, 87,613.80 and 40,877.16 is: 56,414.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,484.16 : 87,613.80 = 40,877.16 : x
  2. Step 2: Convert to fraction form
    63,484.16/87,613.80 = 40,877.16/x
  3. Step 3: Cross multiply
    63,484.16x = 87,613.80 × 40,877.16
  4. Step 4: Simplify right side
    63,484.16x = 3,581,403,320.81
  5. Step 5: Solve for x
    x = 3,581,403,320.81/63,484.16
  6. Step 6: Final answer
    x = 56,414.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.