Home / 81,498.78-122,235.06-22,320.60

Finding the Fourth Proportional to 81,498.78, 122,235.06 and 22,320.60

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Solution

The fourth proportional to 81,498.78, 122,235.06 and 22,320.60 is: 33,477.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,498.78 : 122,235.06 = 22,320.60 : x
  2. Step 2: Convert to fraction form
    81,498.78/122,235.06 = 22,320.60/x
  3. Step 3: Cross multiply
    81,498.78x = 122,235.06 × 22,320.60
  4. Step 4: Simplify right side
    81,498.78x = 2,728,359,880.24
  5. Step 5: Solve for x
    x = 2,728,359,880.24/81,498.78
  6. Step 6: Final answer
    x = 33,477.31

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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.