Home / 87,816.96-121,206.38-55,530.97

Finding the Fourth Proportional to 87,816.96, 121,206.38 and 55,530.97

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Solution

The fourth proportional to 87,816.96, 121,206.38 and 55,530.97 is: 76,644.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,816.96 : 121,206.38 = 55,530.97 : x
  2. Step 2: Convert to fraction form
    87,816.96/121,206.38 = 55,530.97/x
  3. Step 3: Cross multiply
    87,816.96x = 121,206.38 × 55,530.97
  4. Step 4: Simplify right side
    87,816.96x = 6,730,707,270.92
  5. Step 5: Solve for x
    x = 6,730,707,270.92/87,816.96
  6. Step 6: Final answer
    x = 76,644.73

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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.