Home / 45,778.60-68,603.10-40,205.80

Finding the Fourth Proportional to 45,778.60, 68,603.10 and 40,205.80

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Solution

The fourth proportional to 45,778.60, 68,603.10 and 40,205.80 is: 60,251.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,778.60 : 68,603.10 = 40,205.80 : x
  2. Step 2: Convert to fraction form
    45,778.60/68,603.10 = 40,205.80/x
  3. Step 3: Cross multiply
    45,778.60x = 68,603.10 × 40,205.80
  4. Step 4: Simplify right side
    45,778.60x = 2,758,242,517.98
  5. Step 5: Solve for x
    x = 2,758,242,517.98/45,778.60
  6. Step 6: Final answer
    x = 60,251.79

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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.