Home / 80,536.17-120,819.80-30,612.36

Finding the Fourth Proportional to 80,536.17, 120,819.80 and 30,612.36

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Solution

The fourth proportional to 80,536.17, 120,819.80 and 30,612.36 is: 45,924.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,536.17 : 120,819.80 = 30,612.36 : x
  2. Step 2: Convert to fraction form
    80,536.17/120,819.80 = 30,612.36/x
  3. Step 3: Cross multiply
    80,536.17x = 120,819.80 × 30,612.36
  4. Step 4: Simplify right side
    80,536.17x = 3,698,579,742.33
  5. Step 5: Solve for x
    x = 3,698,579,742.33/80,536.17
  6. Step 6: Final answer
    x = 45,924.45

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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.