Home / 81,650.40-122,476.16-22,489.28

Finding the Fourth Proportional to 81,650.40, 122,476.16 and 22,489.28

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Solution

The fourth proportional to 81,650.40, 122,476.16 and 22,489.28 is: 33,734.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,650.40 : 122,476.16 = 22,489.28 : x
  2. Step 2: Convert to fraction form
    81,650.40/122,476.16 = 22,489.28/x
  3. Step 3: Cross multiply
    81,650.40x = 122,476.16 × 22,489.28
  4. Step 4: Simplify right side
    81,650.40x = 2,754,400,655.56
  5. Step 5: Solve for x
    x = 2,754,400,655.56/81,650.40
  6. Step 6: Final answer
    x = 33,734.07

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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.