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Finding the Fourth Proportional to 63,545.92, 87,656.93 and 39,631.07

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Solution

The fourth proportional to 63,545.92, 87,656.93 and 39,631.07 is: 54,668.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,545.92 : 87,656.93 = 39,631.07 : x
  2. Step 2: Convert to fraction form
    63,545.92/87,656.93 = 39,631.07/x
  3. Step 3: Cross multiply
    63,545.92x = 87,656.93 × 39,631.07
  4. Step 4: Simplify right side
    63,545.92x = 3,473,938,321.34
  5. Step 5: Solve for x
    x = 3,473,938,321.34/63,545.92
  6. Step 6: Final answer
    x = 54,668.16

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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.