Home / 91,619.12-137,432.84-25,057.78

Finding the Fourth Proportional to 91,619.12, 137,432.84 and 25,057.78

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Solution

The fourth proportional to 91,619.12, 137,432.84 and 25,057.78 is: 37,587.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,619.12 : 137,432.84 = 25,057.78 : x
  2. Step 2: Convert to fraction form
    91,619.12/137,432.84 = 25,057.78/x
  3. Step 3: Cross multiply
    91,619.12x = 137,432.84 × 25,057.78
  4. Step 4: Simplify right side
    91,619.12x = 3,443,761,400.62
  5. Step 5: Solve for x
    x = 3,443,761,400.62/91,619.12
  6. Step 6: Final answer
    x = 37,587.80

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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.