Home / 89,811.68-123,948.41-51,576.23

Finding the Fourth Proportional to 89,811.68, 123,948.41 and 51,576.23

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Solution

The fourth proportional to 89,811.68, 123,948.41 and 51,576.23 is: 71,179.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,811.68 : 123,948.41 = 51,576.23 : x
  2. Step 2: Convert to fraction form
    89,811.68/123,948.41 = 51,576.23/x
  3. Step 3: Cross multiply
    89,811.68x = 123,948.41 × 51,576.23
  4. Step 4: Simplify right side
    89,811.68x = 6,392,791,754.28
  5. Step 5: Solve for x
    x = 6,392,791,754.28/89,811.68
  6. Step 6: Final answer
    x = 71,179.96

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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.