Home / 57,869.91-86,776.14-18,421.89

Finding the Fourth Proportional to 57,869.91, 86,776.14 and 18,421.89

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Solution

The fourth proportional to 57,869.91, 86,776.14 and 18,421.89 is: 27,623.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,869.91 : 86,776.14 = 18,421.89 : x
  2. Step 2: Convert to fraction form
    57,869.91/86,776.14 = 18,421.89/x
  3. Step 3: Cross multiply
    57,869.91x = 86,776.14 × 18,421.89
  4. Step 4: Simplify right side
    57,869.91x = 1,598,580,505.70
  5. Step 5: Solve for x
    x = 1,598,580,505.70/57,869.91
  6. Step 6: Final answer
    x = 27,623.69

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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.