Home / 57,716.37-86,542.16-20,266.02

Finding the Fourth Proportional to 57,716.37, 86,542.16 and 20,266.02

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Solution

The fourth proportional to 57,716.37, 86,542.16 and 20,266.02 is: 30,387.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,716.37 : 86,542.16 = 20,266.02 : x
  2. Step 2: Convert to fraction form
    57,716.37/86,542.16 = 20,266.02/x
  3. Step 3: Cross multiply
    57,716.37x = 86,542.16 × 20,266.02
  4. Step 4: Simplify right side
    57,716.37x = 1,753,865,044.07
  5. Step 5: Solve for x
    x = 1,753,865,044.07/57,716.37
  6. Step 6: Final answer
    x = 30,387.65

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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.