Home / 77,721.52-107,253.30-43,731.91

Finding the Fourth Proportional to 77,721.52, 107,253.30 and 43,731.91

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Solution

The fourth proportional to 77,721.52, 107,253.30 and 43,731.91 is: 60,348.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,721.52 : 107,253.30 = 43,731.91 : x
  2. Step 2: Convert to fraction form
    77,721.52/107,253.30 = 43,731.91/x
  3. Step 3: Cross multiply
    77,721.52x = 107,253.30 × 43,731.91
  4. Step 4: Simplify right side
    77,721.52x = 4,690,391,662.80
  5. Step 5: Solve for x
    x = 4,690,391,662.80/77,721.52
  6. Step 6: Final answer
    x = 60,348.69

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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.