Home / 57,771.65-86,660.55-18,331.85

Finding the Fourth Proportional to 57,771.65, 86,660.55 and 18,331.85

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Solution

The fourth proportional to 57,771.65, 86,660.55 and 18,331.85 is: 27,498.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,771.65 : 86,660.55 = 18,331.85 : x
  2. Step 2: Convert to fraction form
    57,771.65/86,660.55 = 18,331.85/x
  3. Step 3: Cross multiply
    57,771.65x = 86,660.55 × 18,331.85
  4. Step 4: Simplify right side
    57,771.65x = 1,588,648,203.52
  5. Step 5: Solve for x
    x = 1,588,648,203.52/57,771.65
  6. Step 6: Final answer
    x = 27,498.75

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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.