Home / 67,081.40-100,621.05-17,161.07

Finding the Fourth Proportional to 67,081.40, 100,621.05 and 17,161.07

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Solution

The fourth proportional to 67,081.40, 100,621.05 and 17,161.07 is: 25,741.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,081.40 : 100,621.05 = 17,161.07 : x
  2. Step 2: Convert to fraction form
    67,081.40/100,621.05 = 17,161.07/x
  3. Step 3: Cross multiply
    67,081.40x = 100,621.05 × 17,161.07
  4. Step 4: Simplify right side
    67,081.40x = 1,726,764,411.60
  5. Step 5: Solve for x
    x = 1,726,764,411.60/67,081.40
  6. Step 6: Final answer
    x = 25,741.33

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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.