Home / 90,765.13-136,154.87-27,590.75

Finding the Fourth Proportional to 90,765.13, 136,154.87 and 27,590.75

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Solution

The fourth proportional to 90,765.13, 136,154.87 and 27,590.75 is: 41,388.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,765.13 : 136,154.87 = 27,590.75 : x
  2. Step 2: Convert to fraction form
    90,765.13/136,154.87 = 27,590.75/x
  3. Step 3: Cross multiply
    90,765.13x = 136,154.87 × 27,590.75
  4. Step 4: Simplify right side
    90,765.13x = 3,756,614,979.45
  5. Step 5: Solve for x
    x = 3,756,614,979.45/90,765.13
  6. Step 6: Final answer
    x = 41,388.31

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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.