Home / 68,947.56-95,147.58-39,139.56

Finding the Fourth Proportional to 68,947.56, 95,147.58 and 39,139.56

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Solution

The fourth proportional to 68,947.56, 95,147.58 and 39,139.56 is: 54,012.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,947.56 : 95,147.58 = 39,139.56 : x
  2. Step 2: Convert to fraction form
    68,947.56/95,147.58 = 39,139.56/x
  3. Step 3: Cross multiply
    68,947.56x = 95,147.58 × 39,139.56
  4. Step 4: Simplify right side
    68,947.56x = 3,724,034,416.26
  5. Step 5: Solve for x
    x = 3,724,034,416.26/68,947.56
  6. Step 6: Final answer
    x = 54,012.56

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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.