Home / 77,743.26-107,345.97-60,717.78

Finding the Fourth Proportional to 77,743.26, 107,345.97 and 60,717.78

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Solution

The fourth proportional to 77,743.26, 107,345.97 and 60,717.78 is: 83,837.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,743.26 : 107,345.97 = 60,717.78 : x
  2. Step 2: Convert to fraction form
    77,743.26/107,345.97 = 60,717.78/x
  3. Step 3: Cross multiply
    77,743.26x = 107,345.97 × 60,717.78
  4. Step 4: Simplify right side
    77,743.26x = 6,517,808,990.35
  5. Step 5: Solve for x
    x = 6,517,808,990.35/77,743.26
  6. Step 6: Final answer
    x = 83,837.61

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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.