Home / 87,847.55-121,229.66-47,561.32

Finding the Fourth Proportional to 87,847.55, 121,229.66 and 47,561.32

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Solution

The fourth proportional to 87,847.55, 121,229.66 and 47,561.32 is: 65,634.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,847.55 : 121,229.66 = 47,561.32 : x
  2. Step 2: Convert to fraction form
    87,847.55/121,229.66 = 47,561.32/x
  3. Step 3: Cross multiply
    87,847.55x = 121,229.66 × 47,561.32
  4. Step 4: Simplify right side
    87,847.55x = 5,765,842,652.75
  5. Step 5: Solve for x
    x = 5,765,842,652.75/87,847.55
  6. Step 6: Final answer
    x = 65,634.64

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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.