Home / 81,722.81-122,575.04-22,566.89

Finding the Fourth Proportional to 81,722.81, 122,575.04 and 22,566.89

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Solution

The fourth proportional to 81,722.81, 122,575.04 and 22,566.89 is: 33,847.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,722.81 : 122,575.04 = 22,566.89 : x
  2. Step 2: Convert to fraction form
    81,722.81/122,575.04 = 22,566.89/x
  3. Step 3: Cross multiply
    81,722.81x = 122,575.04 × 22,566.89
  4. Step 4: Simplify right side
    81,722.81x = 2,766,137,331.59
  5. Step 5: Solve for x
    x = 2,766,137,331.59/81,722.81
  6. Step 6: Final answer
    x = 33,847.80

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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.