Home / 90,445.12-135,667.52-35,040.96

Finding the Fourth Proportional to 90,445.12, 135,667.52 and 35,040.96

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Solution

The fourth proportional to 90,445.12, 135,667.52 and 35,040.96 is: 52,561.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,445.12 : 135,667.52 = 35,040.96 : x
  2. Step 2: Convert to fraction form
    90,445.12/135,667.52 = 35,040.96/x
  3. Step 3: Cross multiply
    90,445.12x = 135,667.52 × 35,040.96
  4. Step 4: Simplify right side
    90,445.12x = 4,753,920,141.62
  5. Step 5: Solve for x
    x = 4,753,920,141.62/90,445.12
  6. Step 6: Final answer
    x = 52,561.38

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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.