Home / 90,800.76-136,213.92-31,627.88

Finding the Fourth Proportional to 90,800.76, 136,213.92 and 31,627.88

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Solution

The fourth proportional to 90,800.76, 136,213.92 and 31,627.88 is: 47,446.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,800.76 : 136,213.92 = 31,627.88 : x
  2. Step 2: Convert to fraction form
    90,800.76/136,213.92 = 31,627.88/x
  3. Step 3: Cross multiply
    90,800.76x = 136,213.92 × 31,627.88
  4. Step 4: Simplify right side
    90,800.76x = 4,308,157,516.09
  5. Step 5: Solve for x
    x = 4,308,157,516.09/90,800.76
  6. Step 6: Final answer
    x = 47,446.27

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1.5x scale

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.