Home / 90,401.38-124,754.79-50,115.76

Finding the Fourth Proportional to 90,401.38, 124,754.79 and 50,115.76

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Solution

The fourth proportional to 90,401.38, 124,754.79 and 50,115.76 is: 69,160.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,401.38 : 124,754.79 = 50,115.76 : x
  2. Step 2: Convert to fraction form
    90,401.38/124,754.79 = 50,115.76/x
  3. Step 3: Cross multiply
    90,401.38x = 124,754.79 × 50,115.76
  4. Step 4: Simplify right side
    90,401.38x = 6,252,181,114.49
  5. Step 5: Solve for x
    x = 6,252,181,114.49/90,401.38
  6. Step 6: Final answer
    x = 69,160.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.