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Finding the Fourth Proportional to 84,862.56, 127,293.81 and 21,682.81

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Solution

The fourth proportional to 84,862.56, 127,293.81 and 21,682.81 is: 32,524.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,862.56 : 127,293.81 = 21,682.81 : x
  2. Step 2: Convert to fraction form
    84,862.56/127,293.81 = 21,682.81/x
  3. Step 3: Cross multiply
    84,862.56x = 127,293.81 × 21,682.81
  4. Step 4: Simplify right side
    84,862.56x = 2,760,087,496.41
  5. Step 5: Solve for x
    x = 2,760,087,496.41/84,862.56
  6. Step 6: Final answer
    x = 32,524.21

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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.