Home / 81,176.40-121,764.60-22,012.02

Finding the Fourth Proportional to 81,176.40, 121,764.60 and 22,012.02

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Solution

The fourth proportional to 81,176.40, 121,764.60 and 22,012.02 is: 33,018.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,176.40 : 121,764.60 = 22,012.02 : x
  2. Step 2: Convert to fraction form
    81,176.40/121,764.60 = 22,012.02/x
  3. Step 3: Cross multiply
    81,176.40x = 121,764.60 × 22,012.02
  4. Step 4: Simplify right side
    81,176.40x = 2,680,284,810.49
  5. Step 5: Solve for x
    x = 2,680,284,810.49/81,176.40
  6. Step 6: Final answer
    x = 33,018.03

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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.