Home / 66,092.78-99,139.24-54,381.38

Finding the Fourth Proportional to 66,092.78, 99,139.24 and 54,381.38

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Solution

The fourth proportional to 66,092.78, 99,139.24 and 54,381.38 is: 81,572.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,092.78 : 99,139.24 = 54,381.38 : x
  2. Step 2: Convert to fraction form
    66,092.78/99,139.24 = 54,381.38/x
  3. Step 3: Cross multiply
    66,092.78x = 99,139.24 × 54,381.38
  4. Step 4: Simplify right side
    66,092.78x = 5,391,328,683.35
  5. Step 5: Solve for x
    x = 5,391,328,683.35/66,092.78
  6. Step 6: Final answer
    x = 81,572.13

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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.