Home / 68,915.09-103,310.21-47,865.07

Finding the Fourth Proportional to 68,915.09, 103,310.21 and 47,865.07

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Solution

The fourth proportional to 68,915.09, 103,310.21 and 47,865.07 is: 71,754.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,915.09 : 103,310.21 = 47,865.07 : x
  2. Step 2: Convert to fraction form
    68,915.09/103,310.21 = 47,865.07/x
  3. Step 3: Cross multiply
    68,915.09x = 103,310.21 × 47,865.07
  4. Step 4: Simplify right side
    68,915.09x = 4,944,949,677.49
  5. Step 5: Solve for x
    x = 4,944,949,677.49/68,915.09
  6. Step 6: Final answer
    x = 71,754.24

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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.