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Finding the Fourth Proportional to 83,337.76, 115,009.04 and 45,612

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Solution

The fourth proportional to 83,337.76, 115,009.04 and 45,612 is: 62,946.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,337.76 : 115,009.04 = 45,612 : x
  2. Step 2: Convert to fraction form
    83,337.76/115,009.04 = 45,612/x
  3. Step 3: Cross multiply
    83,337.76x = 115,009.04 × 45,612
  4. Step 4: Simplify right side
    83,337.76x = 5,245,792,332.48
  5. Step 5: Solve for x
    x = 5,245,792,332.48/83,337.76
  6. Step 6: Final answer
    x = 62,946.16

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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.