Home / 85,144.38-127,716.50-40,155.24

Finding the Fourth Proportional to 85,144.38, 127,716.50 and 40,155.24

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Solution

The fourth proportional to 85,144.38, 127,716.50 and 40,155.24 is: 60,232.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,144.38 : 127,716.50 = 40,155.24 : x
  2. Step 2: Convert to fraction form
    85,144.38/127,716.50 = 40,155.24/x
  3. Step 3: Cross multiply
    85,144.38x = 127,716.50 × 40,155.24
  4. Step 4: Simplify right side
    85,144.38x = 5,128,487,062.91
  5. Step 5: Solve for x
    x = 5,128,487,062.91/85,144.38
  6. Step 6: Final answer
    x = 60,232.83

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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.