Home / 83,879.46-125,637.75-39,439.62

Finding the Fourth Proportional to 83,879.46, 125,637.75 and 39,439.62

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Solution

The fourth proportional to 83,879.46, 125,637.75 and 39,439.62 is: 59,074.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,879.46 : 125,637.75 = 39,439.62 : x
  2. Step 2: Convert to fraction form
    83,879.46/125,637.75 = 39,439.62/x
  3. Step 3: Cross multiply
    83,879.46x = 125,637.75 × 39,439.62
  4. Step 4: Simplify right side
    83,879.46x = 4,955,105,117.66
  5. Step 5: Solve for x
    x = 4,955,105,117.66/83,879.46
  6. Step 6: Final answer
    x = 59,074.12

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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.