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Finding the Fourth Proportional to 81,995.52, 122,991.08 and 22,828.80

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Solution

The fourth proportional to 81,995.52, 122,991.08 and 22,828.80 is: 34,242.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,995.52 : 122,991.08 = 22,828.80 : x
  2. Step 2: Convert to fraction form
    81,995.52/122,991.08 = 22,828.80/x
  3. Step 3: Cross multiply
    81,995.52x = 122,991.08 × 22,828.80
  4. Step 4: Simplify right side
    81,995.52x = 2,807,738,767.10
  5. Step 5: Solve for x
    x = 2,807,738,767.10/81,995.52
  6. Step 6: Final answer
    x = 34,242.59

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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.