Home / 80,428.80-120,690.24-33,677.76

Finding the Fourth Proportional to 80,428.80, 120,690.24 and 33,677.76

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Solution

The fourth proportional to 80,428.80, 120,690.24 and 33,677.76 is: 50,536.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,428.80 : 120,690.24 = 33,677.76 : x
  2. Step 2: Convert to fraction form
    80,428.80/120,690.24 = 33,677.76/x
  3. Step 3: Cross multiply
    80,428.80x = 120,690.24 × 33,677.76
  4. Step 4: Simplify right side
    80,428.80x = 4,064,576,937.06
  5. Step 5: Solve for x
    x = 4,064,576,937.06/80,428.80
  6. Step 6: Final answer
    x = 50,536.34

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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.