Home / 57,685.49-86,566.85-20,245.74

Finding the Fourth Proportional to 57,685.49, 86,566.85 and 20,245.74

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Solution

The fourth proportional to 57,685.49, 86,566.85 and 20,245.74 is: 30,382.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,685.49 : 86,566.85 = 20,245.74 : x
  2. Step 2: Convert to fraction form
    57,685.49/86,566.85 = 20,245.74/x
  3. Step 3: Cross multiply
    57,685.49x = 86,566.85 × 20,245.74
  4. Step 4: Simplify right side
    57,685.49x = 1,752,609,912.41
  5. Step 5: Solve for x
    x = 1,752,609,912.41/57,685.49
  6. Step 6: Final answer
    x = 30,382.16

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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.