Home / 57,685.28-86,538.60-18,252.32

Finding the Fourth Proportional to 57,685.28, 86,538.60 and 18,252.32

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Solution

The fourth proportional to 57,685.28, 86,538.60 and 18,252.32 is: 27,381.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,685.28 : 86,538.60 = 18,252.32 : x
  2. Step 2: Convert to fraction form
    57,685.28/86,538.60 = 18,252.32/x
  3. Step 3: Cross multiply
    57,685.28x = 86,538.60 × 18,252.32
  4. Step 4: Simplify right side
    57,685.28x = 1,579,530,219.55
  5. Step 5: Solve for x
    x = 1,579,530,219.55/57,685.28
  6. Step 6: Final answer
    x = 27,381.86

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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.