Home / 45,150.51-67,734.27-20,191.62

Finding the Fourth Proportional to 45,150.51, 67,734.27 and 20,191.62

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Solution

The fourth proportional to 45,150.51, 67,734.27 and 20,191.62 is: 30,291.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,150.51 : 67,734.27 = 20,191.62 : x
  2. Step 2: Convert to fraction form
    45,150.51/67,734.27 = 20,191.62/x
  3. Step 3: Cross multiply
    45,150.51x = 67,734.27 × 20,191.62
  4. Step 4: Simplify right side
    45,150.51x = 1,367,664,640.82
  5. Step 5: Solve for x
    x = 1,367,664,640.82/45,150.51
  6. Step 6: Final answer
    x = 30,291.23

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1.5x scale

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.