Home / 57,813.72-86,727.54-20,366.06

Finding the Fourth Proportional to 57,813.72, 86,727.54 and 20,366.06

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Solution

The fourth proportional to 57,813.72, 86,727.54 and 20,366.06 is: 30,551.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,813.72 : 86,727.54 = 20,366.06 : x
  2. Step 2: Convert to fraction form
    57,813.72/86,727.54 = 20,366.06/x
  3. Step 3: Cross multiply
    57,813.72x = 86,727.54 × 20,366.06
  4. Step 4: Simplify right side
    57,813.72x = 1,766,297,998.11
  5. Step 5: Solve for x
    x = 1,766,297,998.11/57,813.72
  6. Step 6: Final answer
    x = 30,551.53

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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.