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Finding the Fourth Proportional to 50,914.62, 76,382.97 and 21,317.22

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Solution

The fourth proportional to 50,914.62, 76,382.97 and 21,317.22 is: 31,980.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,914.62 : 76,382.97 = 21,317.22 : x
  2. Step 2: Convert to fraction form
    50,914.62/76,382.97 = 21,317.22/x
  3. Step 3: Cross multiply
    50,914.62x = 76,382.97 × 21,317.22
  4. Step 4: Simplify right side
    50,914.62x = 1,628,272,575.74
  5. Step 5: Solve for x
    x = 1,628,272,575.74/50,914.62
  6. Step 6: Final answer
    x = 31,980.45

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1.5x scale

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.