Home / 51,190.40-70,641.92-28,834.56

Finding the Fourth Proportional to 51,190.40, 70,641.92 and 28,834.56

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Solution

The fourth proportional to 51,190.40, 70,641.92 and 28,834.56 is: 39,791.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,190.40 : 70,641.92 = 28,834.56 : x
  2. Step 2: Convert to fraction form
    51,190.40/70,641.92 = 28,834.56/x
  3. Step 3: Cross multiply
    51,190.40x = 70,641.92 × 28,834.56
  4. Step 4: Simplify right side
    51,190.40x = 2,036,928,680.76
  5. Step 5: Solve for x
    x = 2,036,928,680.76/51,190.40
  6. Step 6: Final answer
    x = 39,791.22

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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.