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Finding the Fourth Proportional to 63,155.52, 87,154.60 and 34,861.20

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Solution

The fourth proportional to 63,155.52, 87,154.60 and 34,861.20 is: 48,108.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,155.52 : 87,154.60 = 34,861.20 : x
  2. Step 2: Convert to fraction form
    63,155.52/87,154.60 = 34,861.20/x
  3. Step 3: Cross multiply
    63,155.52x = 87,154.60 × 34,861.20
  4. Step 4: Simplify right side
    63,155.52x = 3,038,313,331.44
  5. Step 5: Solve for x
    x = 3,038,313,331.44/63,155.52
  6. Step 6: Final answer
    x = 48,108.44

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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.