Home / 91,938.16-137,694.76-54,920.56

Finding the Fourth Proportional to 91,938.16, 137,694.76 and 54,920.56

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Solution

The fourth proportional to 91,938.16, 137,694.76 and 54,920.56 is: 82,253.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,938.16 : 137,694.76 = 54,920.56 : x
  2. Step 2: Convert to fraction form
    91,938.16/137,694.76 = 54,920.56/x
  3. Step 3: Cross multiply
    91,938.16x = 137,694.76 × 54,920.56
  4. Step 4: Simplify right side
    91,938.16x = 7,562,273,328.27
  5. Step 5: Solve for x
    x = 7,562,273,328.27/91,938.16
  6. Step 6: Final answer
    x = 82,253.91

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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.