Home / 51,791.40-71,453.70-30,560.04

Finding the Fourth Proportional to 51,791.40, 71,453.70 and 30,560.04

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Solution

The fourth proportional to 51,791.40, 71,453.70 and 30,560.04 is: 42,161.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,791.40 : 71,453.70 = 30,560.04 : x
  2. Step 2: Convert to fraction form
    51,791.40/71,453.70 = 30,560.04/x
  3. Step 3: Cross multiply
    51,791.40x = 71,453.70 × 30,560.04
  4. Step 4: Simplify right side
    51,791.40x = 2,183,627,930.15
  5. Step 5: Solve for x
    x = 2,183,627,930.15/51,791.40
  6. Step 6: Final answer
    x = 42,161.98

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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.