Home / 51,190.43-70,641.72-28,529.33

Finding the Fourth Proportional to 51,190.43, 70,641.72 and 28,529.33

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Solution

The fourth proportional to 51,190.43, 70,641.72 and 28,529.33 is: 39,369.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,190.43 : 70,641.72 = 28,529.33 : x
  2. Step 2: Convert to fraction form
    51,190.43/70,641.72 = 28,529.33/x
  3. Step 3: Cross multiply
    51,190.43x = 70,641.72 × 28,529.33
  4. Step 4: Simplify right side
    51,190.43x = 2,015,360,588.44
  5. Step 5: Solve for x
    x = 2,015,360,588.44/51,190.43
  6. Step 6: Final answer
    x = 39,369.87

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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.