Home / 81,435.62-122,151.70-22,271.29

Finding the Fourth Proportional to 81,435.62, 122,151.70 and 22,271.29

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Solution

The fourth proportional to 81,435.62, 122,151.70 and 22,271.29 is: 33,406.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,435.62 : 122,151.70 = 22,271.29 : x
  2. Step 2: Convert to fraction form
    81,435.62/122,151.70 = 22,271.29/x
  3. Step 3: Cross multiply
    81,435.62x = 122,151.70 × 22,271.29
  4. Step 4: Simplify right side
    81,435.62x = 2,720,476,047.20
  5. Step 5: Solve for x
    x = 2,720,476,047.20/81,435.62
  6. Step 6: Final answer
    x = 33,406.46

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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.