Home / 66,127.10-99,194.38-21,152.39

Finding the Fourth Proportional to 66,127.10, 99,194.38 and 21,152.39

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Solution

The fourth proportional to 66,127.10, 99,194.38 and 21,152.39 is: 31,729.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,127.10 : 99,194.38 = 21,152.39 : x
  2. Step 2: Convert to fraction form
    66,127.10/99,194.38 = 21,152.39/x
  3. Step 3: Cross multiply
    66,127.10x = 99,194.38 × 21,152.39
  4. Step 4: Simplify right side
    66,127.10x = 2,098,198,369.41
  5. Step 5: Solve for x
    x = 2,098,198,369.41/66,127.10
  6. Step 6: Final answer
    x = 31,729.78

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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.