Home / 90,341.54-135,511.89-27,161.38

Finding the Fourth Proportional to 90,341.54, 135,511.89 and 27,161.38

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Solution

The fourth proportional to 90,341.54, 135,511.89 and 27,161.38 is: 40,741.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,341.54 : 135,511.89 = 27,161.38 : x
  2. Step 2: Convert to fraction form
    90,341.54/135,511.89 = 27,161.38/x
  3. Step 3: Cross multiply
    90,341.54x = 135,511.89 × 27,161.38
  4. Step 4: Simplify right side
    90,341.54x = 3,680,689,938.81
  5. Step 5: Solve for x
    x = 3,680,689,938.81/90,341.54
  6. Step 6: Final answer
    x = 40,741.94

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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.