Home / 57,774.20-86,685.60-31,497.80

Finding the Fourth Proportional to 57,774.20, 86,685.60 and 31,497.80

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Solution

The fourth proportional to 57,774.20, 86,685.60 and 31,497.80 is: 47,259.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,774.20 : 86,685.60 = 31,497.80 : x
  2. Step 2: Convert to fraction form
    57,774.20/86,685.60 = 31,497.80/x
  3. Step 3: Cross multiply
    57,774.20x = 86,685.60 × 31,497.80
  4. Step 4: Simplify right side
    57,774.20x = 2,730,405,691.68
  5. Step 5: Solve for x
    x = 2,730,405,691.68/57,774.20
  6. Step 6: Final answer
    x = 47,259.95

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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.