Home / 57,121.24-85,690.98-19,672.06

Finding the Fourth Proportional to 57,121.24, 85,690.98 and 19,672.06

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Solution

The fourth proportional to 57,121.24, 85,690.98 and 19,672.06 is: 29,511.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,121.24 : 85,690.98 = 19,672.06 : x
  2. Step 2: Convert to fraction form
    57,121.24/85,690.98 = 19,672.06/x
  3. Step 3: Cross multiply
    57,121.24x = 85,690.98 × 19,672.06
  4. Step 4: Simplify right side
    57,121.24x = 1,685,718,100.02
  5. Step 5: Solve for x
    x = 1,685,718,100.02/57,121.24
  6. Step 6: Final answer
    x = 29,511.23

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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.