Home / 80,624.94-111,008.31-73,151.55

Finding the Fourth Proportional to 80,624.94, 111,008.31 and 73,151.55

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Solution

The fourth proportional to 80,624.94, 111,008.31 and 73,151.55 is: 100,718.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,624.94 : 111,008.31 = 73,151.55 : x
  2. Step 2: Convert to fraction form
    80,624.94/111,008.31 = 73,151.55/x
  3. Step 3: Cross multiply
    80,624.94x = 111,008.31 × 73,151.55
  4. Step 4: Simplify right side
    80,624.94x = 8,120,429,939.38
  5. Step 5: Solve for x
    x = 8,120,429,939.38/80,624.94
  6. Step 6: Final answer
    x = 100,718.59

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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.