Home / 66,149.10-99,189.63-19,395.90

Finding the Fourth Proportional to 66,149.10, 99,189.63 and 19,395.90

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Solution

The fourth proportional to 66,149.10, 99,189.63 and 19,395.90 is: 29,083.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,149.10 : 99,189.63 = 19,395.90 : x
  2. Step 2: Convert to fraction form
    66,149.10/99,189.63 = 19,395.90/x
  3. Step 3: Cross multiply
    66,149.10x = 99,189.63 × 19,395.90
  4. Step 4: Simplify right side
    66,149.10x = 1,923,872,144.52
  5. Step 5: Solve for x
    x = 1,923,872,144.52/66,149.10
  6. Step 6: Final answer
    x = 29,083.87

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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.