Home / 78,479.06-117,715.97-34,105.82

Finding the Fourth Proportional to 78,479.06, 117,715.97 and 34,105.82

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Solution

The fourth proportional to 78,479.06, 117,715.97 and 34,105.82 is: 51,157.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,479.06 : 117,715.97 = 34,105.82 : x
  2. Step 2: Convert to fraction form
    78,479.06/117,715.97 = 34,105.82/x
  3. Step 3: Cross multiply
    78,479.06x = 117,715.97 × 34,105.82
  4. Step 4: Simplify right side
    78,479.06x = 4,014,798,924.84
  5. Step 5: Solve for x
    x = 4,014,798,924.84/78,479.06
  6. Step 6: Final answer
    x = 51,157.58

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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.