Home / 68,915.16-103,390.96-37,311.18

Finding the Fourth Proportional to 68,915.16, 103,390.96 and 37,311.18

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Solution

The fourth proportional to 68,915.16, 103,390.96 and 37,311.18 is: 55,976.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,915.16 : 103,390.96 = 37,311.18 : x
  2. Step 2: Convert to fraction form
    68,915.16/103,390.96 = 37,311.18/x
  3. Step 3: Cross multiply
    68,915.16x = 103,390.96 × 37,311.18
  4. Step 4: Simplify right side
    68,915.16x = 3,857,638,884.13
  5. Step 5: Solve for x
    x = 3,857,638,884.13/68,915.16
  6. Step 6: Final answer
    x = 55,976.64

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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.