Home / 79,419.38-109,586.87-43,610.90

Finding the Fourth Proportional to 79,419.38, 109,586.87 and 43,610.90

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Solution

The fourth proportional to 79,419.38, 109,586.87 and 43,610.90 is: 60,176.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,419.38 : 109,586.87 = 43,610.90 : x
  2. Step 2: Convert to fraction form
    79,419.38/109,586.87 = 43,610.90/x
  3. Step 3: Cross multiply
    79,419.38x = 109,586.87 × 43,610.90
  4. Step 4: Simplify right side
    79,419.38x = 4,779,181,262.89
  5. Step 5: Solve for x
    x = 4,779,181,262.89/79,419.38
  6. Step 6: Final answer
    x = 60,176.52

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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.