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Finding the Fourth Proportional to 81,750.84, 122,625.05 and 22,585.20

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Solution

The fourth proportional to 81,750.84, 122,625.05 and 22,585.20 is: 33,877.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,750.84 : 122,625.05 = 22,585.20 : x
  2. Step 2: Convert to fraction form
    81,750.84/122,625.05 = 22,585.20/x
  3. Step 3: Cross multiply
    81,750.84x = 122,625.05 × 22,585.20
  4. Step 4: Simplify right side
    81,750.84x = 2,769,511,166.33
  5. Step 5: Solve for x
    x = 2,769,511,166.33/81,750.84
  6. Step 6: Final answer
    x = 33,877.46

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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.