Home / 78,915.26-108,876.05-44,915.23

Finding the Fourth Proportional to 78,915.26, 108,876.05 and 44,915.23

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Solution

The fourth proportional to 78,915.26, 108,876.05 and 44,915.23 is: 61,967.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,915.26 : 108,876.05 = 44,915.23 : x
  2. Step 2: Convert to fraction form
    78,915.26/108,876.05 = 44,915.23/x
  3. Step 3: Cross multiply
    78,915.26x = 108,876.05 × 44,915.23
  4. Step 4: Simplify right side
    78,915.26x = 4,890,193,213.41
  5. Step 5: Solve for x
    x = 4,890,193,213.41/78,915.26
  6. Step 6: Final answer
    x = 61,967.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.