Home / 57,218.94-85,843.32-21,680.52

Finding the Fourth Proportional to 57,218.94, 85,843.32 and 21,680.52

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Solution

The fourth proportional to 57,218.94, 85,843.32 and 21,680.52 is: 32,526.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,218.94 : 85,843.32 = 21,680.52 : x
  2. Step 2: Convert to fraction form
    57,218.94/85,843.32 = 21,680.52/x
  3. Step 3: Cross multiply
    57,218.94x = 85,843.32 × 21,680.52
  4. Step 4: Simplify right side
    57,218.94x = 1,861,127,816.13
  5. Step 5: Solve for x
    x = 1,861,127,816.13/57,218.94
  6. Step 6: Final answer
    x = 32,526.43

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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.