Home / 78,065.09-117,099.88-24,757.32

Finding the Fourth Proportional to 78,065.09, 117,099.88 and 24,757.32

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Solution

The fourth proportional to 78,065.09, 117,099.88 and 24,757.32 is: 37,136.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,065.09 : 117,099.88 = 24,757.32 : x
  2. Step 2: Convert to fraction form
    78,065.09/117,099.88 = 24,757.32/x
  3. Step 3: Cross multiply
    78,065.09x = 117,099.88 × 24,757.32
  4. Step 4: Simplify right side
    78,065.09x = 2,899,079,578.35
  5. Step 5: Solve for x
    x = 2,899,079,578.35/78,065.09
  6. Step 6: Final answer
    x = 37,136.69

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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.