Home / 80,015.76-119,941.56-30,086.64

Finding the Fourth Proportional to 80,015.76, 119,941.56 and 30,086.64

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Solution

The fourth proportional to 80,015.76, 119,941.56 and 30,086.64 is: 45,099.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,015.76 : 119,941.56 = 30,086.64 : x
  2. Step 2: Convert to fraction form
    80,015.76/119,941.56 = 30,086.64/x
  3. Step 3: Cross multiply
    80,015.76x = 119,941.56 × 30,086.64
  4. Step 4: Simplify right side
    80,015.76x = 3,608,638,536.76
  5. Step 5: Solve for x
    x = 3,608,638,536.76/80,015.76
  6. Step 6: Final answer
    x = 45,099.10

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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.