Home / 87,054.28-120,156.24-53,081.46

Finding the Fourth Proportional to 87,054.28, 120,156.24 and 53,081.46

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Solution

The fourth proportional to 87,054.28, 120,156.24 and 53,081.46 is: 73,265.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,054.28 : 120,156.24 = 53,081.46 : x
  2. Step 2: Convert to fraction form
    87,054.28/120,156.24 = 53,081.46/x
  3. Step 3: Cross multiply
    87,054.28x = 120,156.24 × 53,081.46
  4. Step 4: Simplify right side
    87,054.28x = 6,378,068,846.37
  5. Step 5: Solve for x
    x = 6,378,068,846.37/87,054.28
  6. Step 6: Final answer
    x = 73,265.43

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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.