Home / 90,016.54-135,043.92-30,836.32

Finding the Fourth Proportional to 90,016.54, 135,043.92 and 30,836.32

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Solution

The fourth proportional to 90,016.54, 135,043.92 and 30,836.32 is: 46,261.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,016.54 : 135,043.92 = 30,836.32 : x
  2. Step 2: Convert to fraction form
    90,016.54/135,043.92 = 30,836.32/x
  3. Step 3: Cross multiply
    90,016.54x = 135,043.92 × 30,836.32
  4. Step 4: Simplify right side
    90,016.54x = 4,164,257,531.17
  5. Step 5: Solve for x
    x = 4,164,257,531.17/90,016.54
  6. Step 6: Final answer
    x = 46,261.03

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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.