Home / 72,127.12-108,179.74-25,369.06

Finding the Fourth Proportional to 72,127.12, 108,179.74 and 25,369.06

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Solution

The fourth proportional to 72,127.12, 108,179.74 and 25,369.06 is: 38,049.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,127.12 : 108,179.74 = 25,369.06 : x
  2. Step 2: Convert to fraction form
    72,127.12/108,179.74 = 25,369.06/x
  3. Step 3: Cross multiply
    72,127.12x = 108,179.74 × 25,369.06
  4. Step 4: Simplify right side
    72,127.12x = 2,744,418,314.84
  5. Step 5: Solve for x
    x = 2,744,418,314.84/72,127.12
  6. Step 6: Final answer
    x = 38,049.74

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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.