Home / 51,519.78-71,098.20-28,858.59

Finding the Fourth Proportional to 51,519.78, 71,098.20 and 28,858.59

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Solution

The fourth proportional to 51,519.78, 71,098.20 and 28,858.59 is: 39,825.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,519.78 : 71,098.20 = 28,858.59 : x
  2. Step 2: Convert to fraction form
    51,519.78/71,098.20 = 28,858.59/x
  3. Step 3: Cross multiply
    51,519.78x = 71,098.20 × 28,858.59
  4. Step 4: Simplify right side
    51,519.78x = 2,051,793,803.54
  5. Step 5: Solve for x
    x = 2,051,793,803.54/51,519.78
  6. Step 6: Final answer
    x = 39,825.36

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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.