Home / 80,837.62-121,240.02-21,659.46

Finding the Fourth Proportional to 80,837.62, 121,240.02 and 21,659.46

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Solution

The fourth proportional to 80,837.62, 121,240.02 and 21,659.46 is: 32,484.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,837.62 : 121,240.02 = 21,659.46 : x
  2. Step 2: Convert to fraction form
    80,837.62/121,240.02 = 21,659.46/x
  3. Step 3: Cross multiply
    80,837.62x = 121,240.02 × 21,659.46
  4. Step 4: Simplify right side
    80,837.62x = 2,625,993,363.59
  5. Step 5: Solve for x
    x = 2,625,993,363.59/80,837.62
  6. Step 6: Final answer
    x = 32,484.79

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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.