Home / 81,784.72-122,679.51-22,624.75

Finding the Fourth Proportional to 81,784.72, 122,679.51 and 22,624.75

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Solution

The fourth proportional to 81,784.72, 122,679.51 and 22,624.75 is: 33,937.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,784.72 : 122,679.51 = 22,624.75 : x
  2. Step 2: Convert to fraction form
    81,784.72/122,679.51 = 22,624.75/x
  3. Step 3: Cross multiply
    81,784.72x = 122,679.51 × 22,624.75
  4. Step 4: Simplify right side
    81,784.72x = 2,775,593,243.87
  5. Step 5: Solve for x
    x = 2,775,593,243.87/81,784.72
  6. Step 6: Final answer
    x = 33,937.80

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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.