Home / 87,414.81-120,651.53-55,577.49

Finding the Fourth Proportional to 87,414.81, 120,651.53 and 55,577.49

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Solution

The fourth proportional to 87,414.81, 120,651.53 and 55,577.49 is: 76,709.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,414.81 : 120,651.53 = 55,577.49 : x
  2. Step 2: Convert to fraction form
    87,414.81/120,651.53 = 55,577.49/x
  3. Step 3: Cross multiply
    87,414.81x = 120,651.53 × 55,577.49
  4. Step 4: Simplify right side
    87,414.81x = 6,705,509,202.06
  5. Step 5: Solve for x
    x = 6,705,509,202.06/87,414.81
  6. Step 6: Final answer
    x = 76,709.07

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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.