Home / 82,956.15-124,346.20-40,776.75

Finding the Fourth Proportional to 82,956.15, 124,346.20 and 40,776.75

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Solution

The fourth proportional to 82,956.15, 124,346.20 and 40,776.75 is: 61,121.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,956.15 : 124,346.20 = 40,776.75 : x
  2. Step 2: Convert to fraction form
    82,956.15/124,346.20 = 40,776.75/x
  3. Step 3: Cross multiply
    82,956.15x = 124,346.20 × 40,776.75
  4. Step 4: Simplify right side
    82,956.15x = 5,070,433,910.85
  5. Step 5: Solve for x
    x = 5,070,433,910.85/82,956.15
  6. Step 6: Final answer
    x = 61,121.86

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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.