Home / 63,126.38-87,239.79-51,778.22

Finding the Fourth Proportional to 63,126.38, 87,239.79 and 51,778.22

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Solution

The fourth proportional to 63,126.38, 87,239.79 and 51,778.22 is: 71,556.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,126.38 : 87,239.79 = 51,778.22 : x
  2. Step 2: Convert to fraction form
    63,126.38/87,239.79 = 51,778.22/x
  3. Step 3: Cross multiply
    63,126.38x = 87,239.79 × 51,778.22
  4. Step 4: Simplify right side
    63,126.38x = 4,517,121,039.37
  5. Step 5: Solve for x
    x = 4,517,121,039.37/63,126.38
  6. Step 6: Final answer
    x = 71,556.79

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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.