Home / 57,829.30-86,757.81-19,877.92

Finding the Fourth Proportional to 57,829.30, 86,757.81 and 19,877.92

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Solution

The fourth proportional to 57,829.30, 86,757.81 and 19,877.92 is: 29,821.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,829.30 : 86,757.81 = 19,877.92 : x
  2. Step 2: Convert to fraction form
    57,829.30/86,757.81 = 19,877.92/x
  3. Step 3: Cross multiply
    57,829.30x = 86,757.81 × 19,877.92
  4. Step 4: Simplify right side
    57,829.30x = 1,724,564,806.56
  5. Step 5: Solve for x
    x = 1,724,564,806.56/57,829.30
  6. Step 6: Final answer
    x = 29,821.64

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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.