Home / 57,211.91-78,954.36-31,716.76

Finding the Fourth Proportional to 57,211.91, 78,954.36 and 31,716.76

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Solution

The fourth proportional to 57,211.91, 78,954.36 and 31,716.76 is: 43,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,211.91 : 78,954.36 = 31,716.76 : x
  2. Step 2: Convert to fraction form
    57,211.91/78,954.36 = 31,716.76/x
  3. Step 3: Cross multiply
    57,211.91x = 78,954.36 × 31,716.76
  4. Step 4: Simplify right side
    57,211.91x = 2,504,176,487.07
  5. Step 5: Solve for x
    x = 2,504,176,487.07/57,211.91
  6. Step 6: Final answer
    x = 43,770.20

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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.