Home / 89,149.88-123,002.34-55,142.04

Finding the Fourth Proportional to 89,149.88, 123,002.34 and 55,142.04

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Solution

The fourth proportional to 89,149.88, 123,002.34 and 55,142.04 is: 76,080.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,149.88 : 123,002.34 = 55,142.04 : x
  2. Step 2: Convert to fraction form
    89,149.88/123,002.34 = 55,142.04/x
  3. Step 3: Cross multiply
    89,149.88x = 123,002.34 × 55,142.04
  4. Step 4: Simplify right side
    89,149.88x = 6,782,599,952.37
  5. Step 5: Solve for x
    x = 6,782,599,952.37/89,149.88
  6. Step 6: Final answer
    x = 76,080.86

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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.