Home / 84,486.25-126,729.38-22,156.75

Finding the Fourth Proportional to 84,486.25, 126,729.38 and 22,156.75

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Solution

The fourth proportional to 84,486.25, 126,729.38 and 22,156.75 is: 33,235.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,486.25 : 126,729.38 = 22,156.75 : x
  2. Step 2: Convert to fraction form
    84,486.25/126,729.38 = 22,156.75/x
  3. Step 3: Cross multiply
    84,486.25x = 126,729.38 × 22,156.75
  4. Step 4: Simplify right side
    84,486.25x = 2,807,911,190.32
  5. Step 5: Solve for x
    x = 2,807,911,190.32/84,486.25
  6. Step 6: Final answer
    x = 33,235.13

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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.