Home / 57,438.18-86,171.04-27,821.40

Finding the Fourth Proportional to 57,438.18, 86,171.04 and 27,821.40

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Solution

The fourth proportional to 57,438.18, 86,171.04 and 27,821.40 is: 41,738.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,438.18 : 86,171.04 = 27,821.40 : x
  2. Step 2: Convert to fraction form
    57,438.18/86,171.04 = 27,821.40/x
  3. Step 3: Cross multiply
    57,438.18x = 86,171.04 × 27,821.40
  4. Step 4: Simplify right side
    57,438.18x = 2,397,398,972.26
  5. Step 5: Solve for x
    x = 2,397,398,972.26/57,438.18
  6. Step 6: Final answer
    x = 41,738.77

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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.