Home / 57,712.86-86,584.65-18,270.78

Finding the Fourth Proportional to 57,712.86, 86,584.65 and 18,270.78

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Solution

The fourth proportional to 57,712.86, 86,584.65 and 18,270.78 is: 27,411.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,712.86 : 86,584.65 = 18,270.78 : x
  2. Step 2: Convert to fraction form
    57,712.86/86,584.65 = 18,270.78/x
  3. Step 3: Cross multiply
    57,712.86x = 86,584.65 × 18,270.78
  4. Step 4: Simplify right side
    57,712.86x = 1,581,969,091.53
  5. Step 5: Solve for x
    x = 1,581,969,091.53/57,712.86
  6. Step 6: Final answer
    x = 27,411.03

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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.