Home / 68,569.52-102,865.80-21,836.72

Finding the Fourth Proportional to 68,569.52, 102,865.80 and 21,836.72

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Solution

The fourth proportional to 68,569.52, 102,865.80 and 21,836.72 is: 32,758.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,569.52 : 102,865.80 = 21,836.72 : x
  2. Step 2: Convert to fraction form
    68,569.52/102,865.80 = 21,836.72/x
  3. Step 3: Cross multiply
    68,569.52x = 102,865.80 × 21,836.72
  4. Step 4: Simplify right side
    68,569.52x = 2,246,251,672.18
  5. Step 5: Solve for x
    x = 2,246,251,672.18/68,569.52
  6. Step 6: Final answer
    x = 32,758.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.