Home / 86,689.22-119,629.71-48,449.30

Finding the Fourth Proportional to 86,689.22, 119,629.71 and 48,449.30

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Solution

The fourth proportional to 86,689.22, 119,629.71 and 48,449.30 is: 66,859.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,689.22 : 119,629.71 = 48,449.30 : x
  2. Step 2: Convert to fraction form
    86,689.22/119,629.71 = 48,449.30/x
  3. Step 3: Cross multiply
    86,689.22x = 119,629.71 × 48,449.30
  4. Step 4: Simplify right side
    86,689.22x = 5,795,975,708.70
  5. Step 5: Solve for x
    x = 5,795,975,708.70/86,689.22
  6. Step 6: Final answer
    x = 66,859.24

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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.