Home / 90,114.56-135,163.20-27,768.32

Finding the Fourth Proportional to 90,114.56, 135,163.20 and 27,768.32

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Solution

The fourth proportional to 90,114.56, 135,163.20 and 27,768.32 is: 41,649.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,114.56 : 135,163.20 = 27,768.32 : x
  2. Step 2: Convert to fraction form
    90,114.56/135,163.20 = 27,768.32/x
  3. Step 3: Cross multiply
    90,114.56x = 135,163.20 × 27,768.32
  4. Step 4: Simplify right side
    90,114.56x = 3,753,254,989.82
  5. Step 5: Solve for x
    x = 3,753,254,989.82/90,114.56
  6. Step 6: Final answer
    x = 41,649.82

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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.