Home / 80,241.17-120,362.36-21,076.74

Finding the Fourth Proportional to 80,241.17, 120,362.36 and 21,076.74

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Solution

The fourth proportional to 80,241.17, 120,362.36 and 21,076.74 is: 31,615.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,241.17 : 120,362.36 = 21,076.74 : x
  2. Step 2: Convert to fraction form
    80,241.17/120,362.36 = 21,076.74/x
  3. Step 3: Cross multiply
    80,241.17x = 120,362.36 × 21,076.74
  4. Step 4: Simplify right side
    80,241.17x = 2,536,846,062.12
  5. Step 5: Solve for x
    x = 2,536,846,062.12/80,241.17
  6. Step 6: Final answer
    x = 31,615.27

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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.