Home / 51,131.07-70,560.32-28,469.57

Finding the Fourth Proportional to 51,131.07, 70,560.32 and 28,469.57

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Solution

The fourth proportional to 51,131.07, 70,560.32 and 28,469.57 is: 39,287.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,131.07 : 70,560.32 = 28,469.57 : x
  2. Step 2: Convert to fraction form
    51,131.07/70,560.32 = 28,469.57/x
  3. Step 3: Cross multiply
    51,131.07x = 70,560.32 × 28,469.57
  4. Step 4: Simplify right side
    51,131.07x = 2,008,821,474.31
  5. Step 5: Solve for x
    x = 2,008,821,474.31/51,131.07
  6. Step 6: Final answer
    x = 39,287.69

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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.