Home / 85,414.20-128,010.15-34,754.18

Finding the Fourth Proportional to 85,414.20, 128,010.15 and 34,754.18

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Solution

The fourth proportional to 85,414.20, 128,010.15 and 34,754.18 is: 52,086.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,414.20 : 128,010.15 = 34,754.18 : x
  2. Step 2: Convert to fraction form
    85,414.20/128,010.15 = 34,754.18/x
  3. Step 3: Cross multiply
    85,414.20x = 128,010.15 × 34,754.18
  4. Step 4: Simplify right side
    85,414.20x = 4,448,887,154.88
  5. Step 5: Solve for x
    x = 4,448,887,154.88/85,414.20
  6. Step 6: Final answer
    x = 52,086.04

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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.