Home / 68,781.09-103,172.10-22,033.98

Finding the Fourth Proportional to 68,781.09, 103,172.10 and 22,033.98

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Solution

The fourth proportional to 68,781.09, 103,172.10 and 22,033.98 is: 33,051.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,781.09 : 103,172.10 = 22,033.98 : x
  2. Step 2: Convert to fraction form
    68,781.09/103,172.10 = 22,033.98/x
  3. Step 3: Cross multiply
    68,781.09x = 103,172.10 × 22,033.98
  4. Step 4: Simplify right side
    68,781.09x = 2,273,291,987.96
  5. Step 5: Solve for x
    x = 2,273,291,987.96/68,781.09
  6. Step 6: Final answer
    x = 33,051.12

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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.