Home / 88,689.12-122,387.92-52,860.68

Finding the Fourth Proportional to 88,689.12, 122,387.92 and 52,860.68

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Solution

The fourth proportional to 88,689.12, 122,387.92 and 52,860.68 is: 72,945.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,689.12 : 122,387.92 = 52,860.68 : x
  2. Step 2: Convert to fraction form
    88,689.12/122,387.92 = 52,860.68/x
  3. Step 3: Cross multiply
    88,689.12x = 122,387.92 × 52,860.68
  4. Step 4: Simplify right side
    88,689.12x = 6,469,508,674.99
  5. Step 5: Solve for x
    x = 6,469,508,674.99/88,689.12
  6. Step 6: Final answer
    x = 72,945.91

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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.