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Finding the Fourth Proportional to 84,611.39, 126,915.26 and 22,281.89

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Solution

The fourth proportional to 84,611.39, 126,915.26 and 22,281.89 is: 33,422.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,611.39 : 126,915.26 = 22,281.89 : x
  2. Step 2: Convert to fraction form
    84,611.39/126,915.26 = 22,281.89/x
  3. Step 3: Cross multiply
    84,611.39x = 126,915.26 × 22,281.89
  4. Step 4: Simplify right side
    84,611.39x = 2,827,911,116.66
  5. Step 5: Solve for x
    x = 2,827,911,116.66/84,611.39
  6. Step 6: Final answer
    x = 33,422.35

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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.