Home / 87,806.50-121,173.26-47,520.24

Finding the Fourth Proportional to 87,806.50, 121,173.26 and 47,520.24

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Solution

The fourth proportional to 87,806.50, 121,173.26 and 47,520.24 is: 65,578.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,806.50 : 121,173.26 = 47,520.24 : x
  2. Step 2: Convert to fraction form
    87,806.50/121,173.26 = 47,520.24/x
  3. Step 3: Cross multiply
    87,806.50x = 121,173.26 × 47,520.24
  4. Step 4: Simplify right side
    87,806.50x = 5,758,182,396.78
  5. Step 5: Solve for x
    x = 5,758,182,396.78/87,806.50
  6. Step 6: Final answer
    x = 65,578.09

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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.