Home / 90,282.09-135,349.24-34,090.31

Finding the Fourth Proportional to 90,282.09, 135,349.24 and 34,090.31

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Solution

The fourth proportional to 90,282.09, 135,349.24 and 34,090.31 is: 51,107.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,282.09 : 135,349.24 = 34,090.31 : x
  2. Step 2: Convert to fraction form
    90,282.09/135,349.24 = 34,090.31/x
  3. Step 3: Cross multiply
    90,282.09x = 135,349.24 × 34,090.31
  4. Step 4: Simplify right side
    90,282.09x = 4,614,097,549.86
  5. Step 5: Solve for x
    x = 4,614,097,549.86/90,282.09
  6. Step 6: Final answer
    x = 51,107.56

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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.