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Finding the Fourth Proportional to 81,095.27, 111,905.03 and 45,283.15

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Solution

The fourth proportional to 81,095.27, 111,905.03 and 45,283.15 is: 62,487.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,095.27 : 111,905.03 = 45,283.15 : x
  2. Step 2: Convert to fraction form
    81,095.27/111,905.03 = 45,283.15/x
  3. Step 3: Cross multiply
    81,095.27x = 111,905.03 × 45,283.15
  4. Step 4: Simplify right side
    81,095.27x = 5,067,411,473.30
  5. Step 5: Solve for x
    x = 5,067,411,473.30/81,095.27
  6. Step 6: Final answer
    x = 62,487.14

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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.