Home / 50,718.33-76,084.43-21,129.26

Finding the Fourth Proportional to 50,718.33, 76,084.43 and 21,129.26

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Solution

The fourth proportional to 50,718.33, 76,084.43 and 21,129.26 is: 31,696.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,718.33 : 76,084.43 = 21,129.26 : x
  2. Step 2: Convert to fraction form
    50,718.33/76,084.43 = 21,129.26/x
  3. Step 3: Cross multiply
    50,718.33x = 76,084.43 × 21,129.26
  4. Step 4: Simplify right side
    50,718.33x = 1,607,607,217.35
  5. Step 5: Solve for x
    x = 1,607,607,217.35/50,718.33
  6. Step 6: Final answer
    x = 31,696.77

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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.