Home / 80,318.22-120,587.68-40,901.82

Finding the Fourth Proportional to 80,318.22, 120,587.68 and 40,901.82

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Solution

The fourth proportional to 80,318.22, 120,587.68 and 40,901.82 is: 61,408.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,318.22 : 120,587.68 = 40,901.82 : x
  2. Step 2: Convert to fraction form
    80,318.22/120,587.68 = 40,901.82/x
  3. Step 3: Cross multiply
    80,318.22x = 120,587.68 × 40,901.82
  4. Step 4: Simplify right side
    80,318.22x = 4,932,255,581.58
  5. Step 5: Solve for x
    x = 4,932,255,581.58/80,318.22
  6. Step 6: Final answer
    x = 61,408.93

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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.