Home / 187,568.72-281,380.76-54,431.68

Finding the Fourth Proportional to 187,568.72, 281,380.76 and 54,431.68

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Solution

The fourth proportional to 187,568.72, 281,380.76 and 54,431.68 is: 81,655.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,568.72 : 281,380.76 = 54,431.68 : x
  2. Step 2: Convert to fraction form
    187,568.72/281,380.76 = 54,431.68/x
  3. Step 3: Cross multiply
    187,568.72x = 281,380.76 × 54,431.68
  4. Step 4: Simplify right side
    187,568.72x = 15,316,027,486.48
  5. Step 5: Solve for x
    x = 15,316,027,486.48/187,568.72
  6. Step 6: Final answer
    x = 81,655.55

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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.