Home / 52,514.90-78,777.26-20,917.34

Finding the Fourth Proportional to 52,514.90, 78,777.26 and 20,917.34

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Solution

The fourth proportional to 52,514.90, 78,777.26 and 20,917.34 is: 31,377.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,514.90 : 78,777.26 = 20,917.34 : x
  2. Step 2: Convert to fraction form
    52,514.90/78,777.26 = 20,917.34/x
  3. Step 3: Cross multiply
    52,514.90x = 78,777.26 × 20,917.34
  4. Step 4: Simplify right side
    52,514.90x = 1,647,810,731.69
  5. Step 5: Solve for x
    x = 1,647,810,731.69/52,514.90
  6. Step 6: Final answer
    x = 31,377.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.