Home / 80,972.80-111,742.62-45,165.13

Finding the Fourth Proportional to 80,972.80, 111,742.62 and 45,165.13

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Solution

The fourth proportional to 80,972.80, 111,742.62 and 45,165.13 is: 62,327.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,972.80 : 111,742.62 = 45,165.13 : x
  2. Step 2: Convert to fraction form
    80,972.80/111,742.62 = 45,165.13/x
  3. Step 3: Cross multiply
    80,972.80x = 111,742.62 × 45,165.13
  4. Step 4: Simplify right side
    80,972.80x = 5,046,869,929.15
  5. Step 5: Solve for x
    x = 5,046,869,929.15/80,972.80
  6. Step 6: Final answer
    x = 62,327.97

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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.