Home / 80,937.85-111,694.87-45,130.17

Finding the Fourth Proportional to 80,937.85, 111,694.87 and 45,130.17

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Solution

The fourth proportional to 80,937.85, 111,694.87 and 45,130.17 is: 62,279.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,937.85 : 111,694.87 = 45,130.17 : x
  2. Step 2: Convert to fraction form
    80,937.85/111,694.87 = 45,130.17/x
  3. Step 3: Cross multiply
    80,937.85x = 111,694.87 × 45,130.17
  4. Step 4: Simplify right side
    80,937.85x = 5,040,808,523.68
  5. Step 5: Solve for x
    x = 5,040,808,523.68/80,937.85
  6. Step 6: Final answer
    x = 62,279.99

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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.