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Finding the Fourth Proportional to 85,370.88, 127,951.40 and 60,418

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Solution

The fourth proportional to 85,370.88, 127,951.40 and 60,418 is: 90,552.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,370.88 : 127,951.40 = 60,418 : x
  2. Step 2: Convert to fraction form
    85,370.88/127,951.40 = 60,418/x
  3. Step 3: Cross multiply
    85,370.88x = 127,951.40 × 60,418
  4. Step 4: Simplify right side
    85,370.88x = 7,730,567,685.20
  5. Step 5: Solve for x
    x = 7,730,567,685.20/85,370.88
  6. Step 6: Final answer
    x = 90,552.75

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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.