Home / 79,996.48-120,011.60-30,076.96

Finding the Fourth Proportional to 79,996.48, 120,011.60 and 30,076.96

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Solution

The fourth proportional to 79,996.48, 120,011.60 and 30,076.96 is: 45,121.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,996.48 : 120,011.60 = 30,076.96 : x
  2. Step 2: Convert to fraction form
    79,996.48/120,011.60 = 30,076.96/x
  3. Step 3: Cross multiply
    79,996.48x = 120,011.60 × 30,076.96
  4. Step 4: Simplify right side
    79,996.48x = 3,609,584,092.74
  5. Step 5: Solve for x
    x = 3,609,584,092.74/79,996.48
  6. Step 6: Final answer
    x = 45,121.79

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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.