Home / 72,435.20-108,565.12-32,938.08

Finding the Fourth Proportional to 72,435.20, 108,565.12 and 32,938.08

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Solution

The fourth proportional to 72,435.20, 108,565.12 and 32,938.08 is: 49,367.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,435.20 : 108,565.12 = 32,938.08 : x
  2. Step 2: Convert to fraction form
    72,435.20/108,565.12 = 32,938.08/x
  3. Step 3: Cross multiply
    72,435.20x = 108,565.12 × 32,938.08
  4. Step 4: Simplify right side
    72,435.20x = 3,575,926,607.77
  5. Step 5: Solve for x
    x = 3,575,926,607.77/72,435.20
  6. Step 6: Final answer
    x = 49,367.25

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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.