Home / 57,705.20-86,644.20-40,252.40

Finding the Fourth Proportional to 57,705.20, 86,644.20 and 40,252.40

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Solution

The fourth proportional to 57,705.20, 86,644.20 and 40,252.40 is: 60,438.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,705.20 : 86,644.20 = 40,252.40 : x
  2. Step 2: Convert to fraction form
    57,705.20/86,644.20 = 40,252.40/x
  3. Step 3: Cross multiply
    57,705.20x = 86,644.20 × 40,252.40
  4. Step 4: Simplify right side
    57,705.20x = 3,487,636,996.08
  5. Step 5: Solve for x
    x = 3,487,636,996.08/57,705.20
  6. Step 6: Final answer
    x = 60,438.87

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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.