Home / 86,403.38-129,556.22-35,773.77

Finding the Fourth Proportional to 86,403.38, 129,556.22 and 35,773.77

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Solution

The fourth proportional to 86,403.38, 129,556.22 and 35,773.77 is: 53,640.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,403.38 : 129,556.22 = 35,773.77 : x
  2. Step 2: Convert to fraction form
    86,403.38/129,556.22 = 35,773.77/x
  3. Step 3: Cross multiply
    86,403.38x = 129,556.22 × 35,773.77
  4. Step 4: Simplify right side
    86,403.38x = 4,634,714,237.48
  5. Step 5: Solve for x
    x = 4,634,714,237.48/86,403.38
  6. Step 6: Final answer
    x = 53,640.43

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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.