Home / 90,546.36-135,819.56-31,382.07

Finding the Fourth Proportional to 90,546.36, 135,819.56 and 31,382.07

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Solution

The fourth proportional to 90,546.36, 135,819.56 and 31,382.07 is: 47,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,546.36 : 135,819.56 = 31,382.07 : x
  2. Step 2: Convert to fraction form
    90,546.36/135,819.56 = 31,382.07/x
  3. Step 3: Cross multiply
    90,546.36x = 135,819.56 × 31,382.07
  4. Step 4: Simplify right side
    90,546.36x = 4,262,298,939.29
  5. Step 5: Solve for x
    x = 4,262,298,939.29/90,546.36
  6. Step 6: Final answer
    x = 47,073.11

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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.