Home / 89,448.92-123,436.90-51,207.20

Finding the Fourth Proportional to 89,448.92, 123,436.90 and 51,207.20

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Solution

The fourth proportional to 89,448.92, 123,436.90 and 51,207.20 is: 70,664.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,448.92 : 123,436.90 = 51,207.20 : x
  2. Step 2: Convert to fraction form
    89,448.92/123,436.90 = 51,207.20/x
  3. Step 3: Cross multiply
    89,448.92x = 123,436.90 × 51,207.20
  4. Step 4: Simplify right side
    89,448.92x = 6,320,858,025.68
  5. Step 5: Solve for x
    x = 6,320,858,025.68/89,448.92
  6. Step 6: Final answer
    x = 70,664.44

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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.