Home / 89,812.18-123,949.10-51,576.74

Finding the Fourth Proportional to 89,812.18, 123,949.10 and 51,576.74

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Solution

The fourth proportional to 89,812.18, 123,949.10 and 51,576.74 is: 71,180.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,812.18 : 123,949.10 = 51,576.74 : x
  2. Step 2: Convert to fraction form
    89,812.18/123,949.10 = 51,576.74/x
  3. Step 3: Cross multiply
    89,812.18x = 123,949.10 × 51,576.74
  4. Step 4: Simplify right side
    89,812.18x = 6,392,889,626.30
  5. Step 5: Solve for x
    x = 6,392,889,626.30/89,812.18
  6. Step 6: Final answer
    x = 71,180.66

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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.