Home / 81,440.64-122,161.05-22,271.94

Finding the Fourth Proportional to 81,440.64, 122,161.05 and 22,271.94

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Solution

The fourth proportional to 81,440.64, 122,161.05 and 22,271.94 is: 33,407.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,440.64 : 122,161.05 = 22,271.94 : x
  2. Step 2: Convert to fraction form
    81,440.64/122,161.05 = 22,271.94/x
  3. Step 3: Cross multiply
    81,440.64x = 122,161.05 × 22,271.94
  4. Step 4: Simplify right side
    81,440.64x = 2,720,763,575.94
  5. Step 5: Solve for x
    x = 2,720,763,575.94/81,440.64
  6. Step 6: Final answer
    x = 33,407.93

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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.