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Finding the Fourth Proportional to 64,398, 88,839 and 45,545.52

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Solution

The fourth proportional to 64,398, 88,839 and 45,545.52 is: 62,831.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,398 : 88,839 = 45,545.52 : x
  2. Step 2: Convert to fraction form
    64,398/88,839 = 45,545.52/x
  3. Step 3: Cross multiply
    64,398x = 88,839 × 45,545.52
  4. Step 4: Simplify right side
    64,398x = 4,046,218,451.28
  5. Step 5: Solve for x
    x = 4,046,218,451.28/64,398
  6. Step 6: Final answer
    x = 62,831.43

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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.