Home / 80,098.20-120,110.85-42,648.66

Finding the Fourth Proportional to 80,098.20, 120,110.85 and 42,648.66

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Solution

The fourth proportional to 80,098.20, 120,110.85 and 42,648.66 is: 63,953.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,098.20 : 120,110.85 = 42,648.66 : x
  2. Step 2: Convert to fraction form
    80,098.20/120,110.85 = 42,648.66/x
  3. Step 3: Cross multiply
    80,098.20x = 120,110.85 × 42,648.66
  4. Step 4: Simplify right side
    80,098.20x = 5,122,566,803.96
  5. Step 5: Solve for x
    x = 5,122,566,803.96/80,098.20
  6. Step 6: Final answer
    x = 63,953.58

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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.