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Finding the Fourth Proportional to 71,753.68, 107,630.52 and 19,160.38

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Solution

The fourth proportional to 71,753.68, 107,630.52 and 19,160.38 is: 28,740.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,753.68 : 107,630.52 = 19,160.38 : x
  2. Step 2: Convert to fraction form
    71,753.68/107,630.52 = 19,160.38/x
  3. Step 3: Cross multiply
    71,753.68x = 107,630.52 × 19,160.38
  4. Step 4: Simplify right side
    71,753.68x = 2,062,241,662.80
  5. Step 5: Solve for x
    x = 2,062,241,662.80/71,753.68
  6. Step 6: Final answer
    x = 28,740.57

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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.