Home / 66,269.78-99,389.75-18,883.91

Finding the Fourth Proportional to 66,269.78, 99,389.75 and 18,883.91

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Solution

The fourth proportional to 66,269.78, 99,389.75 and 18,883.91 is: 28,321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,269.78 : 99,389.75 = 18,883.91 : x
  2. Step 2: Convert to fraction form
    66,269.78/99,389.75 = 18,883.91/x
  3. Step 3: Cross multiply
    66,269.78x = 99,389.75 × 18,883.91
  4. Step 4: Simplify right side
    66,269.78x = 1,876,866,502.55
  5. Step 5: Solve for x
    x = 1,876,866,502.55/66,269.78
  6. Step 6: Final answer
    x = 28,321.61

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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.