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Finding the Fourth Proportional to 72,687.14, 109,030.71 and 22,767.42

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Solution

The fourth proportional to 72,687.14, 109,030.71 and 22,767.42 is: 34,151.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,687.14 : 109,030.71 = 22,767.42 : x
  2. Step 2: Convert to fraction form
    72,687.14/109,030.71 = 22,767.42/x
  3. Step 3: Cross multiply
    72,687.14x = 109,030.71 × 22,767.42
  4. Step 4: Simplify right side
    72,687.14x = 2,482,347,422.31
  5. Step 5: Solve for x
    x = 2,482,347,422.31/72,687.14
  6. Step 6: Final answer
    x = 34,151.12

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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.