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Finding the Fourth Proportional to 72,241.97, 108,352.02 and 19,655.56

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Solution

The fourth proportional to 72,241.97, 108,352.02 and 19,655.56 is: 29,480.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,241.97 : 108,352.02 = 19,655.56 : x
  2. Step 2: Convert to fraction form
    72,241.97/108,352.02 = 19,655.56/x
  3. Step 3: Cross multiply
    72,241.97x = 108,352.02 × 19,655.56
  4. Step 4: Simplify right side
    72,241.97x = 2,129,719,088.47
  5. Step 5: Solve for x
    x = 2,129,719,088.47/72,241.97
  6. Step 6: Final answer
    x = 29,480.36

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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.