Home / 57,680.30-86,520.45-20,282.60

Finding the Fourth Proportional to 57,680.30, 86,520.45 and 20,282.60

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Solution

The fourth proportional to 57,680.30, 86,520.45 and 20,282.60 is: 30,423.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,680.30 : 86,520.45 = 20,282.60 : x
  2. Step 2: Convert to fraction form
    57,680.30/86,520.45 = 20,282.60/x
  3. Step 3: Cross multiply
    57,680.30x = 86,520.45 × 20,282.60
  4. Step 4: Simplify right side
    57,680.30x = 1,754,859,679.17
  5. Step 5: Solve for x
    x = 1,754,859,679.17/57,680.30
  6. Step 6: Final answer
    x = 30,423.90

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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.