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Finding the Fourth Proportional to 94,978.80, 131,085 and 57,273.84

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Solution

The fourth proportional to 94,978.80, 131,085 and 57,273.84 is: 79,046.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,978.80 : 131,085 = 57,273.84 : x
  2. Step 2: Convert to fraction form
    94,978.80/131,085 = 57,273.84/x
  3. Step 3: Cross multiply
    94,978.80x = 131,085 × 57,273.84
  4. Step 4: Simplify right side
    94,978.80x = 7,507,741,316.40
  5. Step 5: Solve for x
    x = 7,507,741,316.40/94,978.80
  6. Step 6: Final answer
    x = 79,046.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.