Home / 71,550.20-98,734.34-39,716.60

Finding the Fourth Proportional to 71,550.20, 98,734.34 and 39,716.60

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Solution

The fourth proportional to 71,550.20, 98,734.34 and 39,716.60 is: 54,806.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,550.20 : 98,734.34 = 39,716.60 : x
  2. Step 2: Convert to fraction form
    71,550.20/98,734.34 = 39,716.60/x
  3. Step 3: Cross multiply
    71,550.20x = 98,734.34 × 39,716.60
  4. Step 4: Simplify right side
    71,550.20x = 3,921,392,288.04
  5. Step 5: Solve for x
    x = 3,921,392,288.04/71,550.20
  6. Step 6: Final answer
    x = 54,806.17

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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.