Home / 87,999.62-121,438.34-47,713.25

Finding the Fourth Proportional to 87,999.62, 121,438.34 and 47,713.25

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Solution

The fourth proportional to 87,999.62, 121,438.34 and 47,713.25 is: 65,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,999.62 : 121,438.34 = 47,713.25 : x
  2. Step 2: Convert to fraction form
    87,999.62/121,438.34 = 47,713.25/x
  3. Step 3: Cross multiply
    87,999.62x = 121,438.34 × 47,713.25
  4. Step 4: Simplify right side
    87,999.62x = 5,794,218,119.96
  5. Step 5: Solve for x
    x = 5,794,218,119.96/87,999.62
  6. Step 6: Final answer
    x = 65,843.68

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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.