Home / 57,981.30-86,967.09-18,527.82

Finding the Fourth Proportional to 57,981.30, 86,967.09 and 18,527.82

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Solution

The fourth proportional to 57,981.30, 86,967.09 and 18,527.82 is: 27,790.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,981.30 : 86,967.09 = 18,527.82 : x
  2. Step 2: Convert to fraction form
    57,981.30/86,967.09 = 18,527.82/x
  3. Step 3: Cross multiply
    57,981.30x = 86,967.09 × 18,527.82
  4. Step 4: Simplify right side
    57,981.30x = 1,611,310,589.44
  5. Step 5: Solve for x
    x = 1,611,310,589.44/57,981.30
  6. Step 6: Final answer
    x = 27,790.18

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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.