Home / 81,404.20-122,113.02-22,240.36

Finding the Fourth Proportional to 81,404.20, 122,113.02 and 22,240.36

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Solution

The fourth proportional to 81,404.20, 122,113.02 and 22,240.36 is: 33,362.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,404.20 : 122,113.02 = 22,240.36 : x
  2. Step 2: Convert to fraction form
    81,404.20/122,113.02 = 22,240.36/x
  3. Step 3: Cross multiply
    81,404.20x = 122,113.02 × 22,240.36
  4. Step 4: Simplify right side
    81,404.20x = 2,715,837,525.49
  5. Step 5: Solve for x
    x = 2,715,837,525.49/81,404.20
  6. Step 6: Final answer
    x = 33,362.38

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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.