Home / 72,261.27-108,408.36-38,980.59

Finding the Fourth Proportional to 72,261.27, 108,408.36 and 38,980.59

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Solution

The fourth proportional to 72,261.27, 108,408.36 and 38,980.59 is: 58,479.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,261.27 : 108,408.36 = 38,980.59 : x
  2. Step 2: Convert to fraction form
    72,261.27/108,408.36 = 38,980.59/x
  3. Step 3: Cross multiply
    72,261.27x = 108,408.36 × 38,980.59
  4. Step 4: Simplify right side
    72,261.27x = 4,225,821,833.73
  5. Step 5: Solve for x
    x = 4,225,821,833.73/72,261.27
  6. Step 6: Final answer
    x = 58,479.76

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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.