Home / 91,982.20-137,973.30-47,622.55

Finding the Fourth Proportional to 91,982.20, 137,973.30 and 47,622.55

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Solution

The fourth proportional to 91,982.20, 137,973.30 and 47,622.55 is: 71,433.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,982.20 : 137,973.30 = 47,622.55 : x
  2. Step 2: Convert to fraction form
    91,982.20/137,973.30 = 47,622.55/x
  3. Step 3: Cross multiply
    91,982.20x = 137,973.30 × 47,622.55
  4. Step 4: Simplify right side
    91,982.20x = 6,570,640,377.92
  5. Step 5: Solve for x
    x = 6,570,640,377.92/91,982.20
  6. Step 6: Final answer
    x = 71,433.83

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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.