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Finding the Fourth Proportional to 81,651.33, 122,458.35 and 22,492.17

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Solution

The fourth proportional to 81,651.33, 122,458.35 and 22,492.17 is: 33,733.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,651.33 : 122,458.35 = 22,492.17 : x
  2. Step 2: Convert to fraction form
    81,651.33/122,458.35 = 22,492.17/x
  3. Step 3: Cross multiply
    81,651.33x = 122,458.35 × 22,492.17
  4. Step 4: Simplify right side
    81,651.33x = 2,754,354,026.12
  5. Step 5: Solve for x
    x = 2,754,354,026.12/81,651.33
  6. Step 6: Final answer
    x = 33,733.12

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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.