Home / 91,772.06-137,628.92-62,378.78

Finding the Fourth Proportional to 91,772.06, 137,628.92 and 62,378.78

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Solution

The fourth proportional to 91,772.06, 137,628.92 and 62,378.78 is: 93,548.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,772.06 : 137,628.92 = 62,378.78 : x
  2. Step 2: Convert to fraction form
    91,772.06/137,628.92 = 62,378.78/x
  3. Step 3: Cross multiply
    91,772.06x = 137,628.92 × 62,378.78
  4. Step 4: Simplify right side
    91,772.06x = 8,585,123,122.28
  5. Step 5: Solve for x
    x = 8,585,123,122.28/91,772.06
  6. Step 6: Final answer
    x = 93,548.34

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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.