Home / 56,519.70-77,998.13-31,028.42

Finding the Fourth Proportional to 56,519.70, 77,998.13 and 31,028.42

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Solution

The fourth proportional to 56,519.70, 77,998.13 and 31,028.42 is: 42,819.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,519.70 : 77,998.13 = 31,028.42 : x
  2. Step 2: Convert to fraction form
    56,519.70/77,998.13 = 31,028.42/x
  3. Step 3: Cross multiply
    56,519.70x = 77,998.13 × 31,028.42
  4. Step 4: Simplify right side
    56,519.70x = 2,420,158,736.85
  5. Step 5: Solve for x
    x = 2,420,158,736.85/56,519.70
  6. Step 6: Final answer
    x = 42,819.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.