Home / 89,339.80-123,249.48-55,339.24

Finding the Fourth Proportional to 89,339.80, 123,249.48 and 55,339.24

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Solution

The fourth proportional to 89,339.80, 123,249.48 and 55,339.24 is: 76,343.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,339.80 : 123,249.48 = 55,339.24 : x
  2. Step 2: Convert to fraction form
    89,339.80/123,249.48 = 55,339.24/x
  3. Step 3: Cross multiply
    89,339.80x = 123,249.48 × 55,339.24
  4. Step 4: Simplify right side
    89,339.80x = 6,820,532,553.60
  5. Step 5: Solve for x
    x = 6,820,532,553.60/89,339.80
  6. Step 6: Final answer
    x = 76,343.72

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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.