Home / 90,819.65-136,222.56-40,234.34

Finding the Fourth Proportional to 90,819.65, 136,222.56 and 40,234.34

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Solution

The fourth proportional to 90,819.65, 136,222.56 and 40,234.34 is: 60,348.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,819.65 : 136,222.56 = 40,234.34 : x
  2. Step 2: Convert to fraction form
    90,819.65/136,222.56 = 40,234.34/x
  3. Step 3: Cross multiply
    90,819.65x = 136,222.56 × 40,234.34
  4. Step 4: Simplify right side
    90,819.65x = 5,480,824,113.60
  5. Step 5: Solve for x
    x = 5,480,824,113.60/90,819.65
  6. Step 6: Final answer
    x = 60,348.44

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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.