Home / 87,464.70-120,578.06-73,981.44

Finding the Fourth Proportional to 87,464.70, 120,578.06 and 73,981.44

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Solution

The fourth proportional to 87,464.70, 120,578.06 and 73,981.44 is: 101,990.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,464.70 : 120,578.06 = 73,981.44 : x
  2. Step 2: Convert to fraction form
    87,464.70/120,578.06 = 73,981.44/x
  3. Step 3: Cross multiply
    87,464.70x = 120,578.06 × 73,981.44
  4. Step 4: Simplify right side
    87,464.70x = 8,920,538,511.21
  5. Step 5: Solve for x
    x = 8,920,538,511.21/87,464.70
  6. Step 6: Final answer
    x = 101,990.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.