Home / 78,396.24-108,187.62-42,586.95

Finding the Fourth Proportional to 78,396.24, 108,187.62 and 42,586.95

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Solution

The fourth proportional to 78,396.24, 108,187.62 and 42,586.95 is: 58,770.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,396.24 : 108,187.62 = 42,586.95 : x
  2. Step 2: Convert to fraction form
    78,396.24/108,187.62 = 42,586.95/x
  3. Step 3: Cross multiply
    78,396.24x = 108,187.62 × 42,586.95
  4. Step 4: Simplify right side
    78,396.24x = 4,607,380,763.56
  5. Step 5: Solve for x
    x = 4,607,380,763.56/78,396.24
  6. Step 6: Final answer
    x = 58,770.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.