Home / 68,218.96-102,139.46-34,867.20

Finding the Fourth Proportional to 68,218.96, 102,139.46 and 34,867.20

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Solution

The fourth proportional to 68,218.96, 102,139.46 and 34,867.20 is: 52,204.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,218.96 : 102,139.46 = 34,867.20 : x
  2. Step 2: Convert to fraction form
    68,218.96/102,139.46 = 34,867.20/x
  3. Step 3: Cross multiply
    68,218.96x = 102,139.46 × 34,867.20
  4. Step 4: Simplify right side
    68,218.96x = 3,561,316,979.71
  5. Step 5: Solve for x
    x = 3,561,316,979.71/68,218.96
  6. Step 6: Final answer
    x = 52,204.21

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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.