Home / 89,211.25-123,113.21-48,922.61

Finding the Fourth Proportional to 89,211.25, 123,113.21 and 48,922.61

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Solution

The fourth proportional to 89,211.25, 123,113.21 and 48,922.61 is: 67,514.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,211.25 : 123,113.21 = 48,922.61 : x
  2. Step 2: Convert to fraction form
    89,211.25/123,113.21 = 48,922.61/x
  3. Step 3: Cross multiply
    89,211.25x = 123,113.21 × 48,922.61
  4. Step 4: Simplify right side
    89,211.25x = 6,023,018,698.50
  5. Step 5: Solve for x
    x = 6,023,018,698.50/89,211.25
  6. Step 6: Final answer
    x = 67,514.12

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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.