Home / 89,621.40-123,593.40-55,635.24

Finding the Fourth Proportional to 89,621.40, 123,593.40 and 55,635.24

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Solution

The fourth proportional to 89,621.40, 123,593.40 and 55,635.24 is: 76,724.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,621.40 : 123,593.40 = 55,635.24 : x
  2. Step 2: Convert to fraction form
    89,621.40/123,593.40 = 55,635.24/x
  3. Step 3: Cross multiply
    89,621.40x = 123,593.40 × 55,635.24
  4. Step 4: Simplify right side
    89,621.40x = 6,876,148,471.42
  5. Step 5: Solve for x
    x = 6,876,148,471.42/89,621.40
  6. Step 6: Final answer
    x = 76,724.40

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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.