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Finding the Fourth Proportional to 81,204.52, 112,063.04 and 45,396.49

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Solution

The fourth proportional to 81,204.52, 112,063.04 and 45,396.49 is: 62,647.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,204.52 : 112,063.04 = 45,396.49 : x
  2. Step 2: Convert to fraction form
    81,204.52/112,063.04 = 45,396.49/x
  3. Step 3: Cross multiply
    81,204.52x = 112,063.04 × 45,396.49
  4. Step 4: Simplify right side
    81,204.52x = 5,087,268,674.73
  5. Step 5: Solve for x
    x = 5,087,268,674.73/81,204.52
  6. Step 6: Final answer
    x = 62,647.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.