Home / 77,996.28-116,967.05-21,821.30

Finding the Fourth Proportional to 77,996.28, 116,967.05 and 21,821.30

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Solution

The fourth proportional to 77,996.28, 116,967.05 and 21,821.30 is: 32,724.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,996.28 : 116,967.05 = 21,821.30 : x
  2. Step 2: Convert to fraction form
    77,996.28/116,967.05 = 21,821.30/x
  3. Step 3: Cross multiply
    77,996.28x = 116,967.05 × 21,821.30
  4. Step 4: Simplify right side
    77,996.28x = 2,552,372,394.22
  5. Step 5: Solve for x
    x = 2,552,372,394.22/77,996.28
  6. Step 6: Final answer
    x = 32,724.28

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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.