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Finding the Fourth Proportional to 63,295.42, 87,385.58 and 39,454.40

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Solution

The fourth proportional to 63,295.42, 87,385.58 and 39,454.40 is: 54,470.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,295.42 : 87,385.58 = 39,454.40 : x
  2. Step 2: Convert to fraction form
    63,295.42/87,385.58 = 39,454.40/x
  3. Step 3: Cross multiply
    63,295.42x = 87,385.58 × 39,454.40
  4. Step 4: Simplify right side
    63,295.42x = 3,447,745,627.55
  5. Step 5: Solve for x
    x = 3,447,745,627.55/63,295.42
  6. Step 6: Final answer
    x = 54,470.70

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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.