Home / 91,769.14-137,432.17-52,206.31

Finding the Fourth Proportional to 91,769.14, 137,432.17 and 52,206.31

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Solution

The fourth proportional to 91,769.14, 137,432.17 and 52,206.31 is: 78,183.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,769.14 : 137,432.17 = 52,206.31 : x
  2. Step 2: Convert to fraction form
    91,769.14/137,432.17 = 52,206.31/x
  3. Step 3: Cross multiply
    91,769.14x = 137,432.17 × 52,206.31
  4. Step 4: Simplify right side
    91,769.14x = 7,174,826,470.99
  5. Step 5: Solve for x
    x = 7,174,826,470.99/91,769.14
  6. Step 6: Final answer
    x = 78,183.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.