Home / 63,619.82-87,833.53-39,778.89

Finding the Fourth Proportional to 63,619.82, 87,833.53 and 39,778.89

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Solution

The fourth proportional to 63,619.82, 87,833.53 and 39,778.89 is: 54,918.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,619.82 : 87,833.53 = 39,778.89 : x
  2. Step 2: Convert to fraction form
    63,619.82/87,833.53 = 39,778.89/x
  3. Step 3: Cross multiply
    63,619.82x = 87,833.53 × 39,778.89
  4. Step 4: Simplify right side
    63,619.82x = 3,493,920,328.18
  5. Step 5: Solve for x
    x = 3,493,920,328.18/63,619.82
  6. Step 6: Final answer
    x = 54,918.74

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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.