Home / 51,910.51-71,632.68-30,685.66

Finding the Fourth Proportional to 51,910.51, 71,632.68 and 30,685.66

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Solution

The fourth proportional to 51,910.51, 71,632.68 and 30,685.66 is: 42,343.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,910.51 : 71,632.68 = 30,685.66 : x
  2. Step 2: Convert to fraction form
    51,910.51/71,632.68 = 30,685.66/x
  3. Step 3: Cross multiply
    51,910.51x = 71,632.68 × 30,685.66
  4. Step 4: Simplify right side
    51,910.51x = 2,198,096,063.37
  5. Step 5: Solve for x
    x = 2,198,096,063.37/51,910.51
  6. Step 6: Final answer
    x = 42,343.95

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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.