Home / 81,948.20-122,922.30-29,359.40

Finding the Fourth Proportional to 81,948.20, 122,922.30 and 29,359.40

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Solution

The fourth proportional to 81,948.20, 122,922.30 and 29,359.40 is: 44,039.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,948.20 : 122,922.30 = 29,359.40 : x
  2. Step 2: Convert to fraction form
    81,948.20/122,922.30 = 29,359.40/x
  3. Step 3: Cross multiply
    81,948.20x = 122,922.30 × 29,359.40
  4. Step 4: Simplify right side
    81,948.20x = 3,608,924,974.62
  5. Step 5: Solve for x
    x = 3,608,924,974.62/81,948.20
  6. Step 6: Final answer
    x = 44,039.10

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1.5x scale

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.