Home / 51,247.62-70,721.78-28,588.05

Finding the Fourth Proportional to 51,247.62, 70,721.78 and 28,588.05

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Solution

The fourth proportional to 51,247.62, 70,721.78 and 28,588.05 is: 39,451.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,247.62 : 70,721.78 = 28,588.05 : x
  2. Step 2: Convert to fraction form
    51,247.62/70,721.78 = 28,588.05/x
  3. Step 3: Cross multiply
    51,247.62x = 70,721.78 × 28,588.05
  4. Step 4: Simplify right side
    51,247.62x = 2,021,797,639.79
  5. Step 5: Solve for x
    x = 2,021,797,639.79/51,247.62
  6. Step 6: Final answer
    x = 39,451.54

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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.