Home / 68,975.90-95,179.64-38,756.42

Finding the Fourth Proportional to 68,975.90, 95,179.64 and 38,756.42

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Solution

The fourth proportional to 68,975.90, 95,179.64 and 38,756.42 is: 53,479.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,975.90 : 95,179.64 = 38,756.42 : x
  2. Step 2: Convert to fraction form
    68,975.90/95,179.64 = 38,756.42/x
  3. Step 3: Cross multiply
    68,975.90x = 95,179.64 × 38,756.42
  4. Step 4: Simplify right side
    68,975.90x = 3,688,822,103.29
  5. Step 5: Solve for x
    x = 3,688,822,103.29/68,975.90
  6. Step 6: Final answer
    x = 53,479.87

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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.