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Finding the Fourth Proportional to 85,123.52, 127,626.04 and 37,712.88

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Solution

The fourth proportional to 85,123.52, 127,626.04 and 37,712.88 is: 56,543.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,123.52 : 127,626.04 = 37,712.88 : x
  2. Step 2: Convert to fraction form
    85,123.52/127,626.04 = 37,712.88/x
  3. Step 3: Cross multiply
    85,123.52x = 127,626.04 × 37,712.88
  4. Step 4: Simplify right side
    85,123.52x = 4,813,145,531.40
  5. Step 5: Solve for x
    x = 4,813,145,531.40/85,123.52
  6. Step 6: Final answer
    x = 56,543.07

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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.