Home / 68,877.10-103,316.91-18,956.92

Finding the Fourth Proportional to 68,877.10, 103,316.91 and 18,956.92

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Solution

The fourth proportional to 68,877.10, 103,316.91 and 18,956.92 is: 28,435.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,877.10 : 103,316.91 = 18,956.92 : x
  2. Step 2: Convert to fraction form
    68,877.10/103,316.91 = 18,956.92/x
  3. Step 3: Cross multiply
    68,877.10x = 103,316.91 × 18,956.92
  4. Step 4: Simplify right side
    68,877.10x = 1,958,570,397.52
  5. Step 5: Solve for x
    x = 1,958,570,397.52/68,877.10
  6. Step 6: Final answer
    x = 28,435.73

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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.