Home / 90,764.13-136,153.37-27,589.75

Finding the Fourth Proportional to 90,764.13, 136,153.37 and 27,589.75

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Solution

The fourth proportional to 90,764.13, 136,153.37 and 27,589.75 is: 41,386.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,764.13 : 136,153.37 = 27,589.75 : x
  2. Step 2: Convert to fraction form
    90,764.13/136,153.37 = 27,589.75/x
  3. Step 3: Cross multiply
    90,764.13x = 136,153.37 × 27,589.75
  4. Step 4: Simplify right side
    90,764.13x = 3,756,437,439.96
  5. Step 5: Solve for x
    x = 3,756,437,439.96/90,764.13
  6. Step 6: Final answer
    x = 41,386.81

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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.