Home / 89,917.92-124,087.16-49,631.76

Finding the Fourth Proportional to 89,917.92, 124,087.16 and 49,631.76

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Solution

The fourth proportional to 89,917.92, 124,087.16 and 49,631.76 is: 68,492.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,917.92 : 124,087.16 = 49,631.76 : x
  2. Step 2: Convert to fraction form
    89,917.92/124,087.16 = 49,631.76/x
  3. Step 3: Cross multiply
    89,917.92x = 124,087.16 × 49,631.76
  4. Step 4: Simplify right side
    89,917.92x = 6,158,664,144.20
  5. Step 5: Solve for x
    x = 6,158,664,144.20/89,917.92
  6. Step 6: Final answer
    x = 68,492.07

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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.