Home / 80,974.59-111,745.12-45,166.92

Finding the Fourth Proportional to 80,974.59, 111,745.12 and 45,166.92

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Solution

The fourth proportional to 80,974.59, 111,745.12 and 45,166.92 is: 62,330.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,974.59 : 111,745.12 = 45,166.92 : x
  2. Step 2: Convert to fraction form
    80,974.59/111,745.12 = 45,166.92/x
  3. Step 3: Cross multiply
    80,974.59x = 111,745.12 × 45,166.92
  4. Step 4: Simplify right side
    80,974.59x = 5,047,182,895.43
  5. Step 5: Solve for x
    x = 5,047,182,895.43/80,974.59
  6. Step 6: Final answer
    x = 62,330.45

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Double scale
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Similar ratio
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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.