Home / 57,422.96-86,147.44-19,984.80

Finding the Fourth Proportional to 57,422.96, 86,147.44 and 19,984.80

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Solution

The fourth proportional to 57,422.96, 86,147.44 and 19,984.80 is: 29,981.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,422.96 : 86,147.44 = 19,984.80 : x
  2. Step 2: Convert to fraction form
    57,422.96/86,147.44 = 19,984.80/x
  3. Step 3: Cross multiply
    57,422.96x = 86,147.44 × 19,984.80
  4. Step 4: Simplify right side
    57,422.96x = 1,721,639,358.91
  5. Step 5: Solve for x
    x = 1,721,639,358.91/57,422.96
  6. Step 6: Final answer
    x = 29,981.72

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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.