Home / 85,514.43-128,273.85-40,525.23

Finding the Fourth Proportional to 85,514.43, 128,273.85 and 40,525.23

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Solution

The fourth proportional to 85,514.43, 128,273.85 and 40,525.23 is: 60,788.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,514.43 : 128,273.85 = 40,525.23 : x
  2. Step 2: Convert to fraction form
    85,514.43/128,273.85 = 40,525.23/x
  3. Step 3: Cross multiply
    85,514.43x = 128,273.85 × 40,525.23
  4. Step 4: Simplify right side
    85,514.43x = 5,198,327,274.24
  5. Step 5: Solve for x
    x = 5,198,327,274.24/85,514.43
  6. Step 6: Final answer
    x = 60,788.89

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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.