Home / 90,042.52-135,073.20-30,882.96

Finding the Fourth Proportional to 90,042.52, 135,073.20 and 30,882.96

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Solution

The fourth proportional to 90,042.52, 135,073.20 and 30,882.96 is: 46,327.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,042.52 : 135,073.20 = 30,882.96 : x
  2. Step 2: Convert to fraction form
    90,042.52/135,073.20 = 30,882.96/x
  3. Step 3: Cross multiply
    90,042.52x = 135,073.20 × 30,882.96
  4. Step 4: Simplify right side
    90,042.52x = 4,171,460,232.67
  5. Step 5: Solve for x
    x = 4,171,460,232.67/90,042.52
  6. Step 6: Final answer
    x = 46,327.67

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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.