Home / 80,998.29-121,414.28-38,816.73

Finding the Fourth Proportional to 80,998.29, 121,414.28 and 38,816.73

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Solution

The fourth proportional to 80,998.29, 121,414.28 and 38,816.73 is: 58,185.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,998.29 : 121,414.28 = 38,816.73 : x
  2. Step 2: Convert to fraction form
    80,998.29/121,414.28 = 38,816.73/x
  3. Step 3: Cross multiply
    80,998.29x = 121,414.28 × 38,816.73
  4. Step 4: Simplify right side
    80,998.29x = 4,712,905,130.82
  5. Step 5: Solve for x
    x = 4,712,905,130.82/80,998.29
  6. Step 6: Final answer
    x = 58,185.24

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1.5x scale

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.