Home / 187,631.12-281,387.82-54,520.58

Finding the Fourth Proportional to 187,631.12, 281,387.82 and 54,520.58

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Solution

The fourth proportional to 187,631.12, 281,387.82 and 54,520.58 is: 81,763.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,631.12 : 281,387.82 = 54,520.58 : x
  2. Step 2: Convert to fraction form
    187,631.12/281,387.82 = 54,520.58/x
  3. Step 3: Cross multiply
    187,631.12x = 281,387.82 × 54,520.58
  4. Step 4: Simplify right side
    187,631.12x = 15,341,427,151.34
  5. Step 5: Solve for x
    x = 15,341,427,151.34/187,631.12
  6. Step 6: Final answer
    x = 81,763.77

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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.