Home / 51,265.44-76,921.92-21,690.18

Finding the Fourth Proportional to 51,265.44, 76,921.92 and 21,690.18

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Solution

The fourth proportional to 51,265.44, 76,921.92 and 21,690.18 is: 32,545.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,265.44 : 76,921.92 = 21,690.18 : x
  2. Step 2: Convert to fraction form
    51,265.44/76,921.92 = 21,690.18/x
  3. Step 3: Cross multiply
    51,265.44x = 76,921.92 × 21,690.18
  4. Step 4: Simplify right side
    51,265.44x = 1,668,450,290.75
  5. Step 5: Solve for x
    x = 1,668,450,290.75/51,265.44
  6. Step 6: Final answer
    x = 32,545.32

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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.