Home / 84,293.13-126,439.69-21,963.63

Finding the Fourth Proportional to 84,293.13, 126,439.69 and 21,963.63

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Solution

The fourth proportional to 84,293.13, 126,439.69 and 21,963.63 is: 32,945.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,293.13 : 126,439.69 = 21,963.63 : x
  2. Step 2: Convert to fraction form
    84,293.13/126,439.69 = 21,963.63/x
  3. Step 3: Cross multiply
    84,293.13x = 126,439.69 × 21,963.63
  4. Step 4: Simplify right side
    84,293.13x = 2,777,074,568.47
  5. Step 5: Solve for x
    x = 2,777,074,568.47/84,293.13
  6. Step 6: Final answer
    x = 32,945.44

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Double scale
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Similar ratio
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1.5x scale

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.