Home / 83,878.46-125,636.25-39,438.62

Finding the Fourth Proportional to 83,878.46, 125,636.25 and 39,438.62

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Solution

The fourth proportional to 83,878.46, 125,636.25 and 39,438.62 is: 59,072.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,878.46 : 125,636.25 = 39,438.62 : x
  2. Step 2: Convert to fraction form
    83,878.46/125,636.25 = 39,438.62/x
  3. Step 3: Cross multiply
    83,878.46x = 125,636.25 × 39,438.62
  4. Step 4: Simplify right side
    83,878.46x = 4,954,920,321.98
  5. Step 5: Solve for x
    x = 4,954,920,321.98/83,878.46
  6. Step 6: Final answer
    x = 59,072.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.