Home / 83,830.69-125,744.21-39,432.83

Finding the Fourth Proportional to 83,830.69, 125,744.21 and 39,432.83

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Solution

The fourth proportional to 83,830.69, 125,744.21 and 39,432.83 is: 59,148.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,830.69 : 125,744.21 = 39,432.83 : x
  2. Step 2: Convert to fraction form
    83,830.69/125,744.21 = 39,432.83/x
  3. Step 3: Cross multiply
    83,830.69x = 125,744.21 × 39,432.83
  4. Step 4: Simplify right side
    83,830.69x = 4,958,449,859.25
  5. Step 5: Solve for x
    x = 4,958,449,859.25/83,830.69
  6. Step 6: Final answer
    x = 59,148.39

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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.