Home / 85,008.20-127,517.10-25,845.80

Finding the Fourth Proportional to 85,008.20, 127,517.10 and 25,845.80

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Solution

The fourth proportional to 85,008.20, 127,517.10 and 25,845.80 is: 38,770.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,008.20 : 127,517.10 = 25,845.80 : x
  2. Step 2: Convert to fraction form
    85,008.20/127,517.10 = 25,845.80/x
  3. Step 3: Cross multiply
    85,008.20x = 127,517.10 × 25,845.80
  4. Step 4: Simplify right side
    85,008.20x = 3,295,781,463.18
  5. Step 5: Solve for x
    x = 3,295,781,463.18/85,008.20
  6. Step 6: Final answer
    x = 38,770.16

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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.