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Finding the Fourth Proportional to 63,385.95, 87,472.71 and 40,725.06

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Solution

The fourth proportional to 63,385.95, 87,472.71 and 40,725.06 is: 56,200.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,385.95 : 87,472.71 = 40,725.06 : x
  2. Step 2: Convert to fraction form
    63,385.95/87,472.71 = 40,725.06/x
  3. Step 3: Cross multiply
    63,385.95x = 87,472.71 × 40,725.06
  4. Step 4: Simplify right side
    63,385.95x = 3,562,331,363.11
  5. Step 5: Solve for x
    x = 3,562,331,363.11/63,385.95
  6. Step 6: Final answer
    x = 56,200.65

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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.