Home / 87,664.05-120,977.69-49,937.49

Finding the Fourth Proportional to 87,664.05, 120,977.69 and 49,937.49

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Solution

The fourth proportional to 87,664.05, 120,977.69 and 49,937.49 is: 68,914.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,664.05 : 120,977.69 = 49,937.49 : x
  2. Step 2: Convert to fraction form
    87,664.05/120,977.69 = 49,937.49/x
  3. Step 3: Cross multiply
    87,664.05x = 120,977.69 × 49,937.49
  4. Step 4: Simplify right side
    87,664.05x = 6,041,321,934.91
  5. Step 5: Solve for x
    x = 6,041,321,934.91/87,664.05
  6. Step 6: Final answer
    x = 68,914.47

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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.