Home / 51,240.26-70,711.66-28,578.66

Finding the Fourth Proportional to 51,240.26, 70,711.66 and 28,578.66

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Solution

The fourth proportional to 51,240.26, 70,711.66 and 28,578.66 is: 39,438.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,240.26 : 70,711.66 = 28,578.66 : x
  2. Step 2: Convert to fraction form
    51,240.26/70,711.66 = 28,578.66/x
  3. Step 3: Cross multiply
    51,240.26x = 70,711.66 × 28,578.66
  4. Step 4: Simplify right side
    51,240.26x = 2,020,844,550.31
  5. Step 5: Solve for x
    x = 2,020,844,550.31/51,240.26
  6. Step 6: Final answer
    x = 39,438.61

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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.