Home / 72,441.12-108,691.72-39,122.04

Finding the Fourth Proportional to 72,441.12, 108,691.72 and 39,122.04

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Solution

The fourth proportional to 72,441.12, 108,691.72 and 39,122.04 is: 58,699.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,441.12 : 108,691.72 = 39,122.04 : x
  2. Step 2: Convert to fraction form
    72,441.12/108,691.72 = 39,122.04/x
  3. Step 3: Cross multiply
    72,441.12x = 108,691.72 × 39,122.04
  4. Step 4: Simplify right side
    72,441.12x = 4,252,241,817.51
  5. Step 5: Solve for x
    x = 4,252,241,817.51/72,441.12
  6. Step 6: Final answer
    x = 58,699.28

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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.