Home / 57,272.10-85,887.55-19,822

Finding the Fourth Proportional to 57,272.10, 85,887.55 and 19,822

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Solution

The fourth proportional to 57,272.10, 85,887.55 and 19,822 is: 29,725.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,272.10 : 85,887.55 = 19,822 : x
  2. Step 2: Convert to fraction form
    57,272.10/85,887.55 = 19,822/x
  3. Step 3: Cross multiply
    57,272.10x = 85,887.55 × 19,822
  4. Step 4: Simplify right side
    57,272.10x = 1,702,463,016.10
  5. Step 5: Solve for x
    x = 1,702,463,016.10/57,272.10
  6. Step 6: Final answer
    x = 29,725.87

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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.