Home / 80,131.05-120,255.63-38,011.26

Finding the Fourth Proportional to 80,131.05, 120,255.63 and 38,011.26

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Solution

The fourth proportional to 80,131.05, 120,255.63 and 38,011.26 is: 57,044.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,131.05 : 120,255.63 = 38,011.26 : x
  2. Step 2: Convert to fraction form
    80,131.05/120,255.63 = 38,011.26/x
  3. Step 3: Cross multiply
    80,131.05x = 120,255.63 × 38,011.26
  4. Step 4: Simplify right side
    80,131.05x = 4,571,068,018.39
  5. Step 5: Solve for x
    x = 4,571,068,018.39/80,131.05
  6. Step 6: Final answer
    x = 57,044.90

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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.