Home / 51,859.20-71,562.78-30,640.44

Finding the Fourth Proportional to 51,859.20, 71,562.78 and 30,640.44

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Solution

The fourth proportional to 51,859.20, 71,562.78 and 30,640.44 is: 42,282.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,859.20 : 71,562.78 = 30,640.44 : x
  2. Step 2: Convert to fraction form
    51,859.20/71,562.78 = 30,640.44/x
  3. Step 3: Cross multiply
    51,859.20x = 71,562.78 × 30,640.44
  4. Step 4: Simplify right side
    51,859.20x = 2,192,715,066.82
  5. Step 5: Solve for x
    x = 2,192,715,066.82/51,859.20
  6. Step 6: Final answer
    x = 42,282.08

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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.