Home / 61,736.72-85,179.39-38,769.02

Finding the Fourth Proportional to 61,736.72, 85,179.39 and 38,769.02

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Solution

The fourth proportional to 61,736.72, 85,179.39 and 38,769.02 is: 53,490.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,736.72 : 85,179.39 = 38,769.02 : x
  2. Step 2: Convert to fraction form
    61,736.72/85,179.39 = 38,769.02/x
  3. Step 3: Cross multiply
    61,736.72x = 85,179.39 × 38,769.02
  4. Step 4: Simplify right side
    61,736.72x = 3,302,321,474.50
  5. Step 5: Solve for x
    x = 3,302,321,474.50/61,736.72
  6. Step 6: Final answer
    x = 53,490.39

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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.