Home / 83,047.38-114,374.07-77,711.10

Finding the Fourth Proportional to 83,047.38, 114,374.07 and 77,711.10

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Solution

The fourth proportional to 83,047.38, 114,374.07 and 77,711.10 is: 107,024.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,047.38 : 114,374.07 = 77,711.10 : x
  2. Step 2: Convert to fraction form
    83,047.38/114,374.07 = 77,711.10/x
  3. Step 3: Cross multiply
    83,047.38x = 114,374.07 × 77,711.10
  4. Step 4: Simplify right side
    83,047.38x = 8,888,134,791.18
  5. Step 5: Solve for x
    x = 8,888,134,791.18/83,047.38
  6. Step 6: Final answer
    x = 107,024.87

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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.