Home / 66,109.92-99,167.85-18,728.52

Finding the Fourth Proportional to 66,109.92, 99,167.85 and 18,728.52

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Solution

The fourth proportional to 66,109.92, 99,167.85 and 18,728.52 is: 28,093.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,109.92 : 99,167.85 = 18,728.52 : x
  2. Step 2: Convert to fraction form
    66,109.92/99,167.85 = 18,728.52/x
  3. Step 3: Cross multiply
    66,109.92x = 99,167.85 × 18,728.52
  4. Step 4: Simplify right side
    66,109.92x = 1,857,267,062.08
  5. Step 5: Solve for x
    x = 1,857,267,062.08/66,109.92
  6. Step 6: Final answer
    x = 28,093.62

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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.