Home / 66,109.42-99,167.10-18,728.02

Finding the Fourth Proportional to 66,109.42, 99,167.10 and 18,728.02

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Solution

The fourth proportional to 66,109.42, 99,167.10 and 18,728.02 is: 28,092.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,109.42 : 99,167.10 = 18,728.02 : x
  2. Step 2: Convert to fraction form
    66,109.42/99,167.10 = 18,728.02/x
  3. Step 3: Cross multiply
    66,109.42x = 99,167.10 × 18,728.02
  4. Step 4: Simplify right side
    66,109.42x = 1,857,203,432.14
  5. Step 5: Solve for x
    x = 1,857,203,432.14/66,109.42
  6. Step 6: Final answer
    x = 28,092.87

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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.