Home / 75,311.60-112,968.20-22,721.54

Finding the Fourth Proportional to 75,311.60, 112,968.20 and 22,721.54

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Solution

The fourth proportional to 75,311.60, 112,968.20 and 22,721.54 is: 34,082.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,311.60 : 112,968.20 = 22,721.54 : x
  2. Step 2: Convert to fraction form
    75,311.60/112,968.20 = 22,721.54/x
  3. Step 3: Cross multiply
    75,311.60x = 112,968.20 × 22,721.54
  4. Step 4: Simplify right side
    75,311.60x = 2,566,811,475.03
  5. Step 5: Solve for x
    x = 2,566,811,475.03/75,311.60
  6. Step 6: Final answer
    x = 34,082.55

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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.