Home / 81,799.87-122,702.53-22,630.58

Finding the Fourth Proportional to 81,799.87, 122,702.53 and 22,630.58

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Solution

The fourth proportional to 81,799.87, 122,702.53 and 22,630.58 is: 33,946.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,799.87 : 122,702.53 = 22,630.58 : x
  2. Step 2: Convert to fraction form
    81,799.87/122,702.53 = 22,630.58/x
  3. Step 3: Cross multiply
    81,799.87x = 122,702.53 × 22,630.58
  4. Step 4: Simplify right side
    81,799.87x = 2,776,829,308.21
  5. Step 5: Solve for x
    x = 2,776,829,308.21/81,799.87
  6. Step 6: Final answer
    x = 33,946.62

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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.