Home / 80,839.48-111,561.84-45,029.44

Finding the Fourth Proportional to 80,839.48, 111,561.84 and 45,029.44

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Solution

The fourth proportional to 80,839.48, 111,561.84 and 45,029.44 is: 62,142.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,839.48 : 111,561.84 = 45,029.44 : x
  2. Step 2: Convert to fraction form
    80,839.48/111,561.84 = 45,029.44/x
  3. Step 3: Cross multiply
    80,839.48x = 111,561.84 × 45,029.44
  4. Step 4: Simplify right side
    80,839.48x = 5,023,567,180.57
  5. Step 5: Solve for x
    x = 5,023,567,180.57/80,839.48
  6. Step 6: Final answer
    x = 62,142.50

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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.