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Finding the Fourth Proportional to 72,419.88, 108,645.36 and 22,498.92

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Solution

The fourth proportional to 72,419.88, 108,645.36 and 22,498.92 is: 33,753.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,419.88 : 108,645.36 = 22,498.92 : x
  2. Step 2: Convert to fraction form
    72,419.88/108,645.36 = 22,498.92/x
  3. Step 3: Cross multiply
    72,419.88x = 108,645.36 × 22,498.92
  4. Step 4: Simplify right side
    72,419.88x = 2,444,403,263.01
  5. Step 5: Solve for x
    x = 2,444,403,263.01/72,419.88
  6. Step 6: Final answer
    x = 33,753.21

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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.