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Finding the Fourth Proportional to 91,520.70, 137,301.90 and 35,360.97

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Solution

The fourth proportional to 91,520.70, 137,301.90 and 35,360.97 is: 53,049.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,520.70 : 137,301.90 = 35,360.97 : x
  2. Step 2: Convert to fraction form
    91,520.70/137,301.90 = 35,360.97/x
  3. Step 3: Cross multiply
    91,520.70x = 137,301.90 × 35,360.97
  4. Step 4: Simplify right side
    91,520.70x = 4,855,128,366.84
  5. Step 5: Solve for x
    x = 4,855,128,366.84/91,520.70
  6. Step 6: Final answer
    x = 53,049.51

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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.