Home / 68,857.96-103,261.02-54,239.08

Finding the Fourth Proportional to 68,857.96, 103,261.02 and 54,239.08

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Solution

The fourth proportional to 68,857.96, 103,261.02 and 54,239.08 is: 81,338.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,857.96 : 103,261.02 = 54,239.08 : x
  2. Step 2: Convert to fraction form
    68,857.96/103,261.02 = 54,239.08/x
  3. Step 3: Cross multiply
    68,857.96x = 103,261.02 × 54,239.08
  4. Step 4: Simplify right side
    68,857.96x = 5,600,782,724.66
  5. Step 5: Solve for x
    x = 5,600,782,724.66/68,857.96
  6. Step 6: Final answer
    x = 81,338.20

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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.