Home / 63,741.66-87,947.74-39,856.38

Finding the Fourth Proportional to 63,741.66, 87,947.74 and 39,856.38

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Solution

The fourth proportional to 63,741.66, 87,947.74 and 39,856.38 is: 54,991.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,741.66 : 87,947.74 = 39,856.38 : x
  2. Step 2: Convert to fraction form
    63,741.66/87,947.74 = 39,856.38/x
  3. Step 3: Cross multiply
    63,741.66x = 87,947.74 × 39,856.38
  4. Step 4: Simplify right side
    63,741.66x = 3,505,278,545.58
  5. Step 5: Solve for x
    x = 3,505,278,545.58/63,741.66
  6. Step 6: Final answer
    x = 54,991.96

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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.