Home / 91,270.68-136,812.96-61,691.52

Finding the Fourth Proportional to 91,270.68, 136,812.96 and 61,691.52

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Solution

The fourth proportional to 91,270.68, 136,812.96 and 61,691.52 is: 92,474.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,270.68 : 136,812.96 = 61,691.52 : x
  2. Step 2: Convert to fraction form
    91,270.68/136,812.96 = 61,691.52/x
  3. Step 3: Cross multiply
    91,270.68x = 136,812.96 × 61,691.52
  4. Step 4: Simplify right side
    91,270.68x = 8,440,199,458.10
  5. Step 5: Solve for x
    x = 8,440,199,458.10/91,270.68
  6. Step 6: Final answer
    x = 92,474.38

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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.