Home / 84,278.76-126,418.08-25,112.91

Finding the Fourth Proportional to 84,278.76, 126,418.08 and 25,112.91

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Solution

The fourth proportional to 84,278.76, 126,418.08 and 25,112.91 is: 37,669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,278.76 : 126,418.08 = 25,112.91 : x
  2. Step 2: Convert to fraction form
    84,278.76/126,418.08 = 25,112.91/x
  3. Step 3: Cross multiply
    84,278.76x = 126,418.08 × 25,112.91
  4. Step 4: Simplify right side
    84,278.76x = 3,174,725,865.41
  5. Step 5: Solve for x
    x = 3,174,725,865.41/84,278.76
  6. Step 6: Final answer
    x = 37,669.35

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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.