Home / 72,132.20-108,125.40-32,717.60

Finding the Fourth Proportional to 72,132.20, 108,125.40 and 32,717.60

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Solution

The fourth proportional to 72,132.20, 108,125.40 and 32,717.60 is: 49,043.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,132.20 : 108,125.40 = 32,717.60 : x
  2. Step 2: Convert to fraction form
    72,132.20/108,125.40 = 32,717.60/x
  3. Step 3: Cross multiply
    72,132.20x = 108,125.40 × 32,717.60
  4. Step 4: Simplify right side
    72,132.20x = 3,537,603,587.04
  5. Step 5: Solve for x
    x = 3,537,603,587.04/72,132.20
  6. Step 6: Final answer
    x = 49,043.33

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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.