Home / 77,718.28-107,243.62-43,726.06

Finding the Fourth Proportional to 77,718.28, 107,243.62 and 43,726.06

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Solution

The fourth proportional to 77,718.28, 107,243.62 and 43,726.06 is: 60,337.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,718.28 : 107,243.62 = 43,726.06 : x
  2. Step 2: Convert to fraction form
    77,718.28/107,243.62 = 43,726.06/x
  3. Step 3: Cross multiply
    77,718.28x = 107,243.62 × 43,726.06
  4. Step 4: Simplify right side
    77,718.28x = 4,689,340,426.52
  5. Step 5: Solve for x
    x = 4,689,340,426.52/77,718.28
  6. Step 6: Final answer
    x = 60,337.68

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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.