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Finding the Fourth Proportional to 88,167.62, 121,673.72 and 51,871.61

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Solution

The fourth proportional to 88,167.62, 121,673.72 and 51,871.61 is: 71,584.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,167.62 : 121,673.72 = 51,871.61 : x
  2. Step 2: Convert to fraction form
    88,167.62/121,673.72 = 51,871.61/x
  3. Step 3: Cross multiply
    88,167.62x = 121,673.72 × 51,871.61
  4. Step 4: Simplify right side
    88,167.62x = 6,311,412,184.95
  5. Step 5: Solve for x
    x = 6,311,412,184.95/88,167.62
  6. Step 6: Final answer
    x = 71,584.24

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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.