Home / 81,664.80-122,497.20-34,922.40

Finding the Fourth Proportional to 81,664.80, 122,497.20 and 34,922.40

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Solution

The fourth proportional to 81,664.80, 122,497.20 and 34,922.40 is: 52,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,664.80 : 122,497.20 = 34,922.40 : x
  2. Step 2: Convert to fraction form
    81,664.80/122,497.20 = 34,922.40/x
  3. Step 3: Cross multiply
    81,664.80x = 122,497.20 × 34,922.40
  4. Step 4: Simplify right side
    81,664.80x = 4,277,896,217.28
  5. Step 5: Solve for x
    x = 4,277,896,217.28/81,664.80
  6. Step 6: Final answer
    x = 52,383.60

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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.