Home / 84,304.34-126,360.51-28,131.26

Finding the Fourth Proportional to 84,304.34, 126,360.51 and 28,131.26

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Solution

The fourth proportional to 84,304.34, 126,360.51 and 28,131.26 is: 42,164.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,304.34 : 126,360.51 = 28,131.26 : x
  2. Step 2: Convert to fraction form
    84,304.34/126,360.51 = 28,131.26/x
  3. Step 3: Cross multiply
    84,304.34x = 126,360.51 × 28,131.26
  4. Step 4: Simplify right side
    84,304.34x = 3,554,680,360.54
  5. Step 5: Solve for x
    x = 3,554,680,360.54/84,304.34
  6. Step 6: Final answer
    x = 42,164.86

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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.