Home / 87,786.23-121,144.61-47,500.70

Finding the Fourth Proportional to 87,786.23, 121,144.61 and 47,500.70

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Solution

The fourth proportional to 87,786.23, 121,144.61 and 47,500.70 is: 65,550.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,786.23 : 121,144.61 = 47,500.70 : x
  2. Step 2: Convert to fraction form
    87,786.23/121,144.61 = 47,500.70/x
  3. Step 3: Cross multiply
    87,786.23x = 121,144.61 × 47,500.70
  4. Step 4: Simplify right side
    87,786.23x = 5,754,453,817.08
  5. Step 5: Solve for x
    x = 5,754,453,817.08/87,786.23
  6. Step 6: Final answer
    x = 65,550.76

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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.