Home / 87,847.40-121,229.70-47,561.16

Finding the Fourth Proportional to 87,847.40, 121,229.70 and 47,561.16

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Solution

The fourth proportional to 87,847.40, 121,229.70 and 47,561.16 is: 65,634.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,847.40 : 121,229.70 = 47,561.16 : x
  2. Step 2: Convert to fraction form
    87,847.40/121,229.70 = 47,561.16/x
  3. Step 3: Cross multiply
    87,847.40x = 121,229.70 × 47,561.16
  4. Step 4: Simplify right side
    87,847.40x = 5,765,825,158.45
  5. Step 5: Solve for x
    x = 5,765,825,158.45/87,847.40
  6. Step 6: Final answer
    x = 65,634.56

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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.