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Finding the Fourth Proportional to 71,191.73, 106,787.60 and 18,601.13

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Solution

The fourth proportional to 71,191.73, 106,787.60 and 18,601.13 is: 27,901.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,191.73 : 106,787.60 = 18,601.13 : x
  2. Step 2: Convert to fraction form
    71,191.73/106,787.60 = 18,601.13/x
  3. Step 3: Cross multiply
    71,191.73x = 106,787.60 × 18,601.13
  4. Step 4: Simplify right side
    71,191.73x = 1,986,370,029.99
  5. Step 5: Solve for x
    x = 1,986,370,029.99/71,191.73
  6. Step 6: Final answer
    x = 27,901.70

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1.5x scale

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.