Home / 90,517.55-135,779.97-43,108.25

Finding the Fourth Proportional to 90,517.55, 135,779.97 and 43,108.25

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Solution

The fourth proportional to 90,517.55, 135,779.97 and 43,108.25 is: 64,664.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,517.55 : 135,779.97 = 43,108.25 : x
  2. Step 2: Convert to fraction form
    90,517.55/135,779.97 = 43,108.25/x
  3. Step 3: Cross multiply
    90,517.55x = 135,779.97 × 43,108.25
  4. Step 4: Simplify right side
    90,517.55x = 5,853,236,891.75
  5. Step 5: Solve for x
    x = 5,853,236,891.75/90,517.55
  6. Step 6: Final answer
    x = 64,664.11

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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.