Home / 87,847.36-121,229.44-47,561.15

Finding the Fourth Proportional to 87,847.36, 121,229.44 and 47,561.15

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Solution

The fourth proportional to 87,847.36, 121,229.44 and 47,561.15 is: 65,634.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,847.36 : 121,229.44 = 47,561.15 : x
  2. Step 2: Convert to fraction form
    87,847.36/121,229.44 = 47,561.15/x
  3. Step 3: Cross multiply
    87,847.36x = 121,229.44 × 47,561.15
  4. Step 4: Simplify right side
    87,847.36x = 5,765,811,580.26
  5. Step 5: Solve for x
    x = 5,765,811,580.26/87,847.36
  6. Step 6: Final answer
    x = 65,634.43

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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.