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Finding the Fourth Proportional to 81,448.34, 122,179.80 and 22,284.32

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Solution

The fourth proportional to 81,448.34, 122,179.80 and 22,284.32 is: 33,428.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,448.34 : 122,179.80 = 22,284.32 : x
  2. Step 2: Convert to fraction form
    81,448.34/122,179.80 = 22,284.32/x
  3. Step 3: Cross multiply
    81,448.34x = 122,179.80 × 22,284.32
  4. Step 4: Simplify right side
    81,448.34x = 2,722,693,760.74
  5. Step 5: Solve for x
    x = 2,722,693,760.74/81,448.34
  6. Step 6: Final answer
    x = 33,428.47

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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.