Home / 85,331.20-127,997.76-26,167.36

Finding the Fourth Proportional to 85,331.20, 127,997.76 and 26,167.36

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Solution

The fourth proportional to 85,331.20, 127,997.76 and 26,167.36 is: 39,251.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,331.20 : 127,997.76 = 26,167.36 : x
  2. Step 2: Convert to fraction form
    85,331.20/127,997.76 = 26,167.36/x
  3. Step 3: Cross multiply
    85,331.20x = 127,997.76 × 26,167.36
  4. Step 4: Simplify right side
    85,331.20x = 3,349,363,465.11
  5. Step 5: Solve for x
    x = 3,349,363,465.11/85,331.20
  6. Step 6: Final answer
    x = 39,251.33

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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.