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Finding the Fourth Proportional to 40,288, 60,373.60 and 22,720.48

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Solution

The fourth proportional to 40,288, 60,373.60 and 22,720.48 is: 34,047.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,288 : 60,373.60 = 22,720.48 : x
  2. Step 2: Convert to fraction form
    40,288/60,373.60 = 22,720.48/x
  3. Step 3: Cross multiply
    40,288x = 60,373.60 × 22,720.48
  4. Step 4: Simplify right side
    40,288x = 1,371,717,171.33
  5. Step 5: Solve for x
    x = 1,371,717,171.33/40,288
  6. Step 6: Final answer
    x = 34,047.79

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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.