Home / 72,672.18-108,883.71-57,725.41

Finding the Fourth Proportional to 72,672.18, 108,883.71 and 57,725.41

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Solution

The fourth proportional to 72,672.18, 108,883.71 and 57,725.41 is: 86,489.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,672.18 : 108,883.71 = 57,725.41 : x
  2. Step 2: Convert to fraction form
    72,672.18/108,883.71 = 57,725.41/x
  3. Step 3: Cross multiply
    72,672.18x = 108,883.71 × 57,725.41
  4. Step 4: Simplify right side
    72,672.18x = 6,285,356,257.65
  5. Step 5: Solve for x
    x = 6,285,356,257.65/72,672.18
  6. Step 6: Final answer
    x = 86,489.17

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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.