Home / 80,579.08-111,233.23-54,390.74

Finding the Fourth Proportional to 80,579.08, 111,233.23 and 54,390.74

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Solution

The fourth proportional to 80,579.08, 111,233.23 and 54,390.74 is: 75,082.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,579.08 : 111,233.23 = 54,390.74 : x
  2. Step 2: Convert to fraction form
    80,579.08/111,233.23 = 54,390.74/x
  3. Step 3: Cross multiply
    80,579.08x = 111,233.23 × 54,390.74
  4. Step 4: Simplify right side
    80,579.08x = 6,050,057,692.29
  5. Step 5: Solve for x
    x = 6,050,057,692.29/80,579.08
  6. Step 6: Final answer
    x = 75,082.24

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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.