Home / 90,806.86-136,247.82-40,179.34

Finding the Fourth Proportional to 90,806.86, 136,247.82 and 40,179.34

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Solution

The fourth proportional to 90,806.86, 136,247.82 and 40,179.34 is: 60,285.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,806.86 : 136,247.82 = 40,179.34 : x
  2. Step 2: Convert to fraction form
    90,806.86/136,247.82 = 40,179.34/x
  3. Step 3: Cross multiply
    90,806.86x = 136,247.82 × 40,179.34
  4. Step 4: Simplify right side
    90,806.86x = 5,474,347,484.04
  5. Step 5: Solve for x
    x = 5,474,347,484.04/90,806.86
  6. Step 6: Final answer
    x = 60,285.62

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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.