Home / 89,778.17-123,892.35-48,942.74

Finding the Fourth Proportional to 89,778.17, 123,892.35 and 48,942.74

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Solution

The fourth proportional to 89,778.17, 123,892.35 and 48,942.74 is: 67,540.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,778.17 : 123,892.35 = 48,942.74 : x
  2. Step 2: Convert to fraction form
    89,778.17/123,892.35 = 48,942.74/x
  3. Step 3: Cross multiply
    89,778.17x = 123,892.35 × 48,942.74
  4. Step 4: Simplify right side
    89,778.17x = 6,063,630,454.58
  5. Step 5: Solve for x
    x = 6,063,630,454.58/89,778.17
  6. Step 6: Final answer
    x = 67,540.15

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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.