Home / 80,972.46-121,473.27-38,816.82

Finding the Fourth Proportional to 80,972.46, 121,473.27 and 38,816.82

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Solution

The fourth proportional to 80,972.46, 121,473.27 and 38,816.82 is: 58,232.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,972.46 : 121,473.27 = 38,816.82 : x
  2. Step 2: Convert to fraction form
    80,972.46/121,473.27 = 38,816.82/x
  3. Step 3: Cross multiply
    80,972.46x = 121,473.27 × 38,816.82
  4. Step 4: Simplify right side
    80,972.46x = 4,715,206,056.40
  5. Step 5: Solve for x
    x = 4,715,206,056.40/80,972.46
  6. Step 6: Final answer
    x = 58,232.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.