Home / 72,319.76-108,508.20-22,403.75

Finding the Fourth Proportional to 72,319.76, 108,508.20 and 22,403.75

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Solution

The fourth proportional to 72,319.76, 108,508.20 and 22,403.75 is: 33,614.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,319.76 : 108,508.20 = 22,403.75 : x
  2. Step 2: Convert to fraction form
    72,319.76/108,508.20 = 22,403.75/x
  3. Step 3: Cross multiply
    72,319.76x = 108,508.20 × 22,403.75
  4. Step 4: Simplify right side
    72,319.76x = 2,430,990,801.01
  5. Step 5: Solve for x
    x = 2,430,990,801.01/72,319.76
  6. Step 6: Final answer
    x = 33,614.47

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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.