Home / 51,976.36-71,711-31,812.22

Finding the Fourth Proportional to 51,976.36, 71,711 and 31,812.22

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Solution

The fourth proportional to 51,976.36, 71,711 and 31,812.22 is: 43,890.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,976.36 : 71,711 = 31,812.22 : x
  2. Step 2: Convert to fraction form
    51,976.36/71,711 = 31,812.22/x
  3. Step 3: Cross multiply
    51,976.36x = 71,711 × 31,812.22
  4. Step 4: Simplify right side
    51,976.36x = 2,281,285,929.14
  5. Step 5: Solve for x
    x = 2,281,285,929.14/51,976.36
  6. Step 6: Final answer
    x = 43,890.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.