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Finding the Fourth Proportional to 78,073.00, 117,091.95 and 35,912.57

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Solution

The fourth proportional to 78,073.00, 117,091.95 and 35,912.57 is: 53,860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,073.00 : 117,091.95 = 35,912.57 : x
  2. Step 2: Convert to fraction form
    78,073.00/117,091.95 = 35,912.57/x
  3. Step 3: Cross multiply
    78,073.00x = 117,091.95 × 35,912.57
  4. Step 4: Simplify right side
    78,073.00x = 4,205,072,130.68
  5. Step 5: Solve for x
    x = 4,205,072,130.68/78,073.00
  6. Step 6: Final answer
    x = 53,860.77

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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.