Home / 90,517.05-135,779.22-43,107.75

Finding the Fourth Proportional to 90,517.05, 135,779.22 and 43,107.75

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Solution

The fourth proportional to 90,517.05, 135,779.22 and 43,107.75 is: 64,663.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,517.05 : 135,779.22 = 43,107.75 : x
  2. Step 2: Convert to fraction form
    90,517.05/135,779.22 = 43,107.75/x
  3. Step 3: Cross multiply
    90,517.05x = 135,779.22 × 43,107.75
  4. Step 4: Simplify right side
    90,517.05x = 5,853,136,670.96
  5. Step 5: Solve for x
    x = 5,853,136,670.96/90,517.05
  6. Step 6: Final answer
    x = 64,663.36

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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.