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Finding the Fourth Proportional to 85,326.88, 127,989.86 and 22,146.96

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Solution

The fourth proportional to 85,326.88, 127,989.86 and 22,146.96 is: 33,220.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,326.88 : 127,989.86 = 22,146.96 : x
  2. Step 2: Convert to fraction form
    85,326.88/127,989.86 = 22,146.96/x
  3. Step 3: Cross multiply
    85,326.88x = 127,989.86 × 22,146.96
  4. Step 4: Simplify right side
    85,326.88x = 2,834,586,309.83
  5. Step 5: Solve for x
    x = 2,834,586,309.83/85,326.88
  6. Step 6: Final answer
    x = 33,220.32

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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.