Home / 90,339.62-135,502.94-28,008.50

Finding the Fourth Proportional to 90,339.62, 135,502.94 and 28,008.50

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Solution

The fourth proportional to 90,339.62, 135,502.94 and 28,008.50 is: 42,010.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,339.62 : 135,502.94 = 28,008.50 : x
  2. Step 2: Convert to fraction form
    90,339.62/135,502.94 = 28,008.50/x
  3. Step 3: Cross multiply
    90,339.62x = 135,502.94 × 28,008.50
  4. Step 4: Simplify right side
    90,339.62x = 3,795,233,487.50
  5. Step 5: Solve for x
    x = 3,795,233,487.50/90,339.62
  6. Step 6: Final answer
    x = 42,010.73

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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.