Home / 80,679.12-111,338.76-44,869.20

Finding the Fourth Proportional to 80,679.12, 111,338.76 and 44,869.20

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Solution

The fourth proportional to 80,679.12, 111,338.76 and 44,869.20 is: 61,920.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,679.12 : 111,338.76 = 44,869.20 : x
  2. Step 2: Convert to fraction form
    80,679.12/111,338.76 = 44,869.20/x
  3. Step 3: Cross multiply
    80,679.12x = 111,338.76 × 44,869.20
  4. Step 4: Simplify right side
    80,679.12x = 4,995,681,090.19
  5. Step 5: Solve for x
    x = 4,995,681,090.19/80,679.12
  6. Step 6: Final answer
    x = 61,920.37

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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.