Home / 91,240.14-136,933.92-38,686.53

Finding the Fourth Proportional to 91,240.14, 136,933.92 and 38,686.53

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Solution

The fourth proportional to 91,240.14, 136,933.92 and 38,686.53 is: 58,061.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,240.14 : 136,933.92 = 38,686.53 : x
  2. Step 2: Convert to fraction form
    91,240.14/136,933.92 = 38,686.53/x
  3. Step 3: Cross multiply
    91,240.14x = 136,933.92 × 38,686.53
  4. Step 4: Simplify right side
    91,240.14x = 5,297,498,204.10
  5. Step 5: Solve for x
    x = 5,297,498,204.10/91,240.14
  6. Step 6: Final answer
    x = 58,061.05

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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.