Home / 87,786.95-121,145.96-47,500.70

Finding the Fourth Proportional to 87,786.95, 121,145.96 and 47,500.70

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Solution

The fourth proportional to 87,786.95, 121,145.96 and 47,500.70 is: 65,550.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,786.95 : 121,145.96 = 47,500.70 : x
  2. Step 2: Convert to fraction form
    87,786.95/121,145.96 = 47,500.70/x
  3. Step 3: Cross multiply
    87,786.95x = 121,145.96 × 47,500.70
  4. Step 4: Simplify right side
    87,786.95x = 5,754,517,953.85
  5. Step 5: Solve for x
    x = 5,754,517,953.85/87,786.95
  6. Step 6: Final answer
    x = 65,550.95

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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.