Home / 87,414.66-120,631.68-49,688.91

Finding the Fourth Proportional to 87,414.66, 120,631.68 and 49,688.91

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Solution

The fourth proportional to 87,414.66, 120,631.68 and 49,688.91 is: 68,570.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,414.66 : 120,631.68 = 49,688.91 : x
  2. Step 2: Convert to fraction form
    87,414.66/120,631.68 = 49,688.91/x
  3. Step 3: Cross multiply
    87,414.66x = 120,631.68 × 49,688.91
  4. Step 4: Simplify right side
    87,414.66x = 5,994,056,690.67
  5. Step 5: Solve for x
    x = 5,994,056,690.67/87,414.66
  6. Step 6: Final answer
    x = 68,570.38

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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.