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Finding the Fourth Proportional to 77,397.94, 116,011.92 and 39,960.82

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Solution

The fourth proportional to 77,397.94, 116,011.92 and 39,960.82 is: 59,897.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,397.94 : 116,011.92 = 39,960.82 : x
  2. Step 2: Convert to fraction form
    77,397.94/116,011.92 = 39,960.82/x
  3. Step 3: Cross multiply
    77,397.94x = 116,011.92 × 39,960.82
  4. Step 4: Simplify right side
    77,397.94x = 4,635,931,452.97
  5. Step 5: Solve for x
    x = 4,635,931,452.97/77,397.94
  6. Step 6: Final answer
    x = 59,897.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.