Home / 87,273.75-120,449.07-53,275.11

Finding the Fourth Proportional to 87,273.75, 120,449.07 and 53,275.11

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Solution

The fourth proportional to 87,273.75, 120,449.07 and 53,275.11 is: 73,526.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,273.75 : 120,449.07 = 53,275.11 : x
  2. Step 2: Convert to fraction form
    87,273.75/120,449.07 = 53,275.11/x
  3. Step 3: Cross multiply
    87,273.75x = 120,449.07 × 53,275.11
  4. Step 4: Simplify right side
    87,273.75x = 6,416,937,453.65
  5. Step 5: Solve for x
    x = 6,416,937,453.65/87,273.75
  6. Step 6: Final answer
    x = 73,526.55

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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.