Home / 84,478.33-126,735.72-25,319.17

Finding the Fourth Proportional to 84,478.33, 126,735.72 and 25,319.17

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Solution

The fourth proportional to 84,478.33, 126,735.72 and 25,319.17 is: 37,984.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,478.33 : 126,735.72 = 25,319.17 : x
  2. Step 2: Convert to fraction form
    84,478.33/126,735.72 = 25,319.17/x
  3. Step 3: Cross multiply
    84,478.33x = 126,735.72 × 25,319.17
  4. Step 4: Simplify right side
    84,478.33x = 3,208,843,239.75
  5. Step 5: Solve for x
    x = 3,208,843,239.75/84,478.33
  6. Step 6: Final answer
    x = 37,984.22

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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.