Home / 78,414.90-108,229.68-48,226.20

Finding the Fourth Proportional to 78,414.90, 108,229.68 and 48,226.20

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Solution

The fourth proportional to 78,414.90, 108,229.68 and 48,226.20 is: 66,562.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,414.90 : 108,229.68 = 48,226.20 : x
  2. Step 2: Convert to fraction form
    78,414.90/108,229.68 = 48,226.20/x
  3. Step 3: Cross multiply
    78,414.90x = 108,229.68 × 48,226.20
  4. Step 4: Simplify right side
    78,414.90x = 5,219,506,193.62
  5. Step 5: Solve for x
    x = 5,219,506,193.62/78,414.90
  6. Step 6: Final answer
    x = 66,562.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.