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Finding the Fourth Proportional to 85,115.61, 127,702.17 and 37,724.22

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Solution

The fourth proportional to 85,115.61, 127,702.17 and 37,724.22 is: 56,599.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,115.61 : 127,702.17 = 37,724.22 : x
  2. Step 2: Convert to fraction form
    85,115.61/127,702.17 = 37,724.22/x
  3. Step 3: Cross multiply
    85,115.61x = 127,702.17 × 37,724.22
  4. Step 4: Simplify right side
    85,115.61x = 4,817,464,755.56
  5. Step 5: Solve for x
    x = 4,817,464,755.56/85,115.61
  6. Step 6: Final answer
    x = 56,599.07

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1.5x scale

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.