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Finding the Fourth Proportional to 68,112.68, 93,988.14 and 37,893.20

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Solution

The fourth proportional to 68,112.68, 93,988.14 and 37,893.20 is: 52,288.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,112.68 : 93,988.14 = 37,893.20 : x
  2. Step 2: Convert to fraction form
    68,112.68/93,988.14 = 37,893.20/x
  3. Step 3: Cross multiply
    68,112.68x = 93,988.14 × 37,893.20
  4. Step 4: Simplify right side
    68,112.68x = 3,561,511,386.65
  5. Step 5: Solve for x
    x = 3,561,511,386.65/68,112.68
  6. Step 6: Final answer
    x = 52,288.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.