Home / 84,003.69-125,961.79-39,618.53

Finding the Fourth Proportional to 84,003.69, 125,961.79 and 39,618.53

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Solution

The fourth proportional to 84,003.69, 125,961.79 and 39,618.53 is: 59,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,003.69 : 125,961.79 = 39,618.53 : x
  2. Step 2: Convert to fraction form
    84,003.69/125,961.79 = 39,618.53/x
  3. Step 3: Cross multiply
    84,003.69x = 125,961.79 × 39,618.53
  4. Step 4: Simplify right side
    84,003.69x = 4,990,420,955.97
  5. Step 5: Solve for x
    x = 4,990,420,955.97/84,003.69
  6. Step 6: Final answer
    x = 59,407.16

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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.