Home / 90,649.94-135,977.58-43,270.04

Finding the Fourth Proportional to 90,649.94, 135,977.58 and 43,270.04

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Solution

The fourth proportional to 90,649.94, 135,977.58 and 43,270.04 is: 64,906.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,649.94 : 135,977.58 = 43,270.04 : x
  2. Step 2: Convert to fraction form
    90,649.94/135,977.58 = 43,270.04/x
  3. Step 3: Cross multiply
    90,649.94x = 135,977.58 × 43,270.04
  4. Step 4: Simplify right side
    90,649.94x = 5,883,754,645.82
  5. Step 5: Solve for x
    x = 5,883,754,645.82/90,649.94
  6. Step 6: Final answer
    x = 64,906.33

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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.