Home / 84,247.56-126,371.28-21,918.06

Finding the Fourth Proportional to 84,247.56, 126,371.28 and 21,918.06

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Solution

The fourth proportional to 84,247.56, 126,371.28 and 21,918.06 is: 32,877.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,247.56 : 126,371.28 = 21,918.06 : x
  2. Step 2: Convert to fraction form
    84,247.56/126,371.28 = 21,918.06/x
  3. Step 3: Cross multiply
    84,247.56x = 126,371.28 × 21,918.06
  4. Step 4: Simplify right side
    84,247.56x = 2,769,813,297.32
  5. Step 5: Solve for x
    x = 2,769,813,297.32/84,247.56
  6. Step 6: Final answer
    x = 32,877.07

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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.