Home / 84,112.35-125,987.61-39,672.51

Finding the Fourth Proportional to 84,112.35, 125,987.61 and 39,672.51

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Solution

The fourth proportional to 84,112.35, 125,987.61 and 39,672.51 is: 59,423.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,112.35 : 125,987.61 = 39,672.51 : x
  2. Step 2: Convert to fraction form
    84,112.35/125,987.61 = 39,672.51/x
  3. Step 3: Cross multiply
    84,112.35x = 125,987.61 × 39,672.51
  4. Step 4: Simplify right side
    84,112.35x = 4,998,244,717.60
  5. Step 5: Solve for x
    x = 4,998,244,717.60/84,112.35
  6. Step 6: Final answer
    x = 59,423.43

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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.