Home / 45,452.76-68,159.70-20,487.48

Finding the Fourth Proportional to 45,452.76, 68,159.70 and 20,487.48

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Solution

The fourth proportional to 45,452.76, 68,159.70 and 20,487.48 is: 30,722.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,452.76 : 68,159.70 = 20,487.48 : x
  2. Step 2: Convert to fraction form
    45,452.76/68,159.70 = 20,487.48/x
  3. Step 3: Cross multiply
    45,452.76x = 68,159.70 × 20,487.48
  4. Step 4: Simplify right side
    45,452.76x = 1,396,420,490.56
  5. Step 5: Solve for x
    x = 1,396,420,490.56/45,452.76
  6. Step 6: Final answer
    x = 30,722.46

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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.