Home / 45,517.55-68,251.59-20,528.34

Finding the Fourth Proportional to 45,517.55, 68,251.59 and 20,528.34

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Solution

The fourth proportional to 45,517.55, 68,251.59 and 20,528.34 is: 30,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,517.55 : 68,251.59 = 20,528.34 : x
  2. Step 2: Convert to fraction form
    45,517.55/68,251.59 = 20,528.34/x
  3. Step 3: Cross multiply
    45,517.55x = 68,251.59 × 20,528.34
  4. Step 4: Simplify right side
    45,517.55x = 1,401,091,845.06
  5. Step 5: Solve for x
    x = 1,401,091,845.06/45,517.55
  6. Step 6: Final answer
    x = 30,781.35

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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.