Home / 89,911.38-124,068.87-49,622.54

Finding the Fourth Proportional to 89,911.38, 124,068.87 and 49,622.54

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Solution

The fourth proportional to 89,911.38, 124,068.87 and 49,622.54 is: 68,474.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,911.38 : 124,068.87 = 49,622.54 : x
  2. Step 2: Convert to fraction form
    89,911.38/124,068.87 = 49,622.54/x
  3. Step 3: Cross multiply
    89,911.38x = 124,068.87 × 49,622.54
  4. Step 4: Simplify right side
    89,911.38x = 6,156,612,774.50
  5. Step 5: Solve for x
    x = 6,156,612,774.50/89,911.38
  6. Step 6: Final answer
    x = 68,474.23

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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.