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Finding the Fourth Proportional to 63,572.58, 87,747.30 and 39,684.87

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Solution

The fourth proportional to 63,572.58, 87,747.30 and 39,684.87 is: 54,775.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,572.58 : 87,747.30 = 39,684.87 : x
  2. Step 2: Convert to fraction form
    63,572.58/87,747.30 = 39,684.87/x
  3. Step 3: Cross multiply
    63,572.58x = 87,747.30 × 39,684.87
  4. Step 4: Simplify right side
    63,572.58x = 3,482,240,193.35
  5. Step 5: Solve for x
    x = 3,482,240,193.35/63,572.58
  6. Step 6: Final answer
    x = 54,775.82

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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.