Home / 81,914.54-122,915.96-34,562.45

Finding the Fourth Proportional to 81,914.54, 122,915.96 and 34,562.45

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Solution

The fourth proportional to 81,914.54, 122,915.96 and 34,562.45 is: 51,862.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,914.54 : 122,915.96 = 34,562.45 : x
  2. Step 2: Convert to fraction form
    81,914.54/122,915.96 = 34,562.45/x
  3. Step 3: Cross multiply
    81,914.54x = 122,915.96 × 34,562.45
  4. Step 4: Simplify right side
    81,914.54x = 4,248,276,721.70
  5. Step 5: Solve for x
    x = 4,248,276,721.70/81,914.54
  6. Step 6: Final answer
    x = 51,862.30

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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.