Home / 69,162.90-103,679.55-54,161.70

Finding the Fourth Proportional to 69,162.90, 103,679.55 and 54,161.70

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Solution

The fourth proportional to 69,162.90, 103,679.55 and 54,161.70 is: 81,191.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,162.90 : 103,679.55 = 54,161.70 : x
  2. Step 2: Convert to fraction form
    69,162.90/103,679.55 = 54,161.70/x
  3. Step 3: Cross multiply
    69,162.90x = 103,679.55 × 54,161.70
  4. Step 4: Simplify right side
    69,162.90x = 5,615,460,683.24
  5. Step 5: Solve for x
    x = 5,615,460,683.24/69,162.90
  6. Step 6: Final answer
    x = 81,191.80

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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.