Home / 87,933.29-121,340.75-49,696.11

Finding the Fourth Proportional to 87,933.29, 121,340.75 and 49,696.11

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Solution

The fourth proportional to 87,933.29, 121,340.75 and 49,696.11 is: 68,576.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,933.29 : 121,340.75 = 49,696.11 : x
  2. Step 2: Convert to fraction form
    87,933.29/121,340.75 = 49,696.11/x
  3. Step 3: Cross multiply
    87,933.29x = 121,340.75 × 49,696.11
  4. Step 4: Simplify right side
    87,933.29x = 6,030,163,011.00
  5. Step 5: Solve for x
    x = 6,030,163,011.00/87,933.29
  6. Step 6: Final answer
    x = 68,576.57

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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.