Home / 80,278.38-110,668.77-56,330.82

Finding the Fourth Proportional to 80,278.38, 110,668.77 and 56,330.82

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Solution

The fourth proportional to 80,278.38, 110,668.77 and 56,330.82 is: 77,655.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,278.38 : 110,668.77 = 56,330.82 : x
  2. Step 2: Convert to fraction form
    80,278.38/110,668.77 = 56,330.82/x
  3. Step 3: Cross multiply
    80,278.38x = 110,668.77 × 56,330.82
  4. Step 4: Simplify right side
    80,278.38x = 6,234,062,562.49
  5. Step 5: Solve for x
    x = 6,234,062,562.49/80,278.38
  6. Step 6: Final answer
    x = 77,655.56

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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.