Home / 80,475.40-120,626.70-30,536.20

Finding the Fourth Proportional to 80,475.40, 120,626.70 and 30,536.20

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Solution

The fourth proportional to 80,475.40, 120,626.70 and 30,536.20 is: 45,771.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,475.40 : 120,626.70 = 30,536.20 : x
  2. Step 2: Convert to fraction form
    80,475.40/120,626.70 = 30,536.20/x
  3. Step 3: Cross multiply
    80,475.40x = 120,626.70 × 30,536.20
  4. Step 4: Simplify right side
    80,475.40x = 3,683,481,036.54
  5. Step 5: Solve for x
    x = 3,683,481,036.54/80,475.40
  6. Step 6: Final answer
    x = 45,771.52

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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.