Home / 90,117.56-135,167.70-27,771.32

Finding the Fourth Proportional to 90,117.56, 135,167.70 and 27,771.32

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Solution

The fourth proportional to 90,117.56, 135,167.70 and 27,771.32 is: 41,654.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,117.56 : 135,167.70 = 27,771.32 : x
  2. Step 2: Convert to fraction form
    90,117.56/135,167.70 = 27,771.32/x
  3. Step 3: Cross multiply
    90,117.56x = 135,167.70 × 27,771.32
  4. Step 4: Simplify right side
    90,117.56x = 3,753,785,450.36
  5. Step 5: Solve for x
    x = 3,753,785,450.36/90,117.56
  6. Step 6: Final answer
    x = 41,654.32

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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.