Home / 69,120.20-103,680.30-24,748.40

Finding the Fourth Proportional to 69,120.20, 103,680.30 and 24,748.40

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Solution

The fourth proportional to 69,120.20, 103,680.30 and 24,748.40 is: 37,122.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,120.20 : 103,680.30 = 24,748.40 : x
  2. Step 2: Convert to fraction form
    69,120.20/103,680.30 = 24,748.40/x
  3. Step 3: Cross multiply
    69,120.20x = 103,680.30 × 24,748.40
  4. Step 4: Simplify right side
    69,120.20x = 2,565,921,536.52
  5. Step 5: Solve for x
    x = 2,565,921,536.52/69,120.20
  6. Step 6: Final answer
    x = 37,122.60

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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.