Home / 45,446.56-68,138.22-20,132.34

Finding the Fourth Proportional to 45,446.56, 68,138.22 and 20,132.34

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Solution

The fourth proportional to 45,446.56, 68,138.22 and 20,132.34 is: 30,184.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,446.56 : 68,138.22 = 20,132.34 : x
  2. Step 2: Convert to fraction form
    45,446.56/68,138.22 = 20,132.34/x
  3. Step 3: Cross multiply
    45,446.56x = 68,138.22 × 20,132.34
  4. Step 4: Simplify right side
    45,446.56x = 1,371,781,812.03
  5. Step 5: Solve for x
    x = 1,371,781,812.03/45,446.56
  6. Step 6: Final answer
    x = 30,184.50

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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.