Home / 78,356.03-117,453.61-30,951.92

Finding the Fourth Proportional to 78,356.03, 117,453.61 and 30,951.92

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Solution

The fourth proportional to 78,356.03, 117,453.61 and 30,951.92 is: 46,396.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,356.03 : 117,453.61 = 30,951.92 : x
  2. Step 2: Convert to fraction form
    78,356.03/117,453.61 = 30,951.92/x
  3. Step 3: Cross multiply
    78,356.03x = 117,453.61 × 30,951.92
  4. Step 4: Simplify right side
    78,356.03x = 3,635,415,072.76
  5. Step 5: Solve for x
    x = 3,635,415,072.76/78,356.03
  6. Step 6: Final answer
    x = 46,396.11

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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.