Home / 87,749.36-131,624.27-28,589.65

Finding the Fourth Proportional to 87,749.36, 131,624.27 and 28,589.65

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Solution

The fourth proportional to 87,749.36, 131,624.27 and 28,589.65 is: 42,884.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,749.36 : 131,624.27 = 28,589.65 : x
  2. Step 2: Convert to fraction form
    87,749.36/131,624.27 = 28,589.65/x
  3. Step 3: Cross multiply
    87,749.36x = 131,624.27 × 28,589.65
  4. Step 4: Simplify right side
    87,749.36x = 3,763,091,810.81
  5. Step 5: Solve for x
    x = 3,763,091,810.81/87,749.36
  6. Step 6: Final answer
    x = 42,884.55

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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.