Home / 51,628.78-71,241.89-28,963.07

Finding the Fourth Proportional to 51,628.78, 71,241.89 and 28,963.07

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Solution

The fourth proportional to 51,628.78, 71,241.89 and 28,963.07 is: 39,965.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,628.78 : 71,241.89 = 28,963.07 : x
  2. Step 2: Convert to fraction form
    51,628.78/71,241.89 = 28,963.07/x
  3. Step 3: Cross multiply
    51,628.78x = 71,241.89 × 28,963.07
  4. Step 4: Simplify right side
    51,628.78x = 2,063,383,345.98
  5. Step 5: Solve for x
    x = 2,063,383,345.98/51,628.78
  6. Step 6: Final answer
    x = 39,965.76

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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.