Home / 90,178.56-135,287.28-27,003.69

Finding the Fourth Proportional to 90,178.56, 135,287.28 and 27,003.69

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Solution

The fourth proportional to 90,178.56, 135,287.28 and 27,003.69 is: 40,511.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,178.56 : 135,287.28 = 27,003.69 : x
  2. Step 2: Convert to fraction form
    90,178.56/135,287.28 = 27,003.69/x
  3. Step 3: Cross multiply
    90,178.56x = 135,287.28 × 27,003.69
  4. Step 4: Simplify right side
    90,178.56x = 3,653,255,770.06
  5. Step 5: Solve for x
    x = 3,653,255,770.06/90,178.56
  6. Step 6: Final answer
    x = 40,511.36

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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.