Home / 57,515.27-86,286.74-18,072.35

Finding the Fourth Proportional to 57,515.27, 86,286.74 and 18,072.35

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Solution

The fourth proportional to 57,515.27, 86,286.74 and 18,072.35 is: 27,112.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,515.27 : 86,286.74 = 18,072.35 : x
  2. Step 2: Convert to fraction form
    57,515.27/86,286.74 = 18,072.35/x
  3. Step 3: Cross multiply
    57,515.27x = 86,286.74 × 18,072.35
  4. Step 4: Simplify right side
    57,515.27x = 1,559,403,967.42
  5. Step 5: Solve for x
    x = 1,559,403,967.42/57,515.27
  6. Step 6: Final answer
    x = 27,112.87

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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.