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Finding the Fourth Proportional to 57,652.56, 86,482.44 and 18,211.20

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Solution

The fourth proportional to 57,652.56, 86,482.44 and 18,211.20 is: 27,317.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,652.56 : 86,482.44 = 18,211.20 : x
  2. Step 2: Convert to fraction form
    57,652.56/86,482.44 = 18,211.20/x
  3. Step 3: Cross multiply
    57,652.56x = 86,482.44 × 18,211.20
  4. Step 4: Simplify right side
    57,652.56x = 1,574,949,011.33
  5. Step 5: Solve for x
    x = 1,574,949,011.33/57,652.56
  6. Step 6: Final answer
    x = 27,317.94

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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.