Home / 60,580.22-90,863.85-21,138.08

Finding the Fourth Proportional to 60,580.22, 90,863.85 and 21,138.08

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Solution

The fourth proportional to 60,580.22, 90,863.85 and 21,138.08 is: 31,704.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,580.22 : 90,863.85 = 21,138.08 : x
  2. Step 2: Convert to fraction form
    60,580.22/90,863.85 = 21,138.08/x
  3. Step 3: Cross multiply
    60,580.22x = 90,863.85 × 21,138.08
  4. Step 4: Simplify right side
    60,580.22x = 1,920,686,997.56
  5. Step 5: Solve for x
    x = 1,920,686,997.56/60,580.22
  6. Step 6: Final answer
    x = 31,704.85

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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.