Home / 87,529.86-120,536.97-76,039.53

Finding the Fourth Proportional to 87,529.86, 120,536.97 and 76,039.53

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Solution

The fourth proportional to 87,529.86, 120,536.97 and 76,039.53 is: 104,713.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,529.86 : 120,536.97 = 76,039.53 : x
  2. Step 2: Convert to fraction form
    87,529.86/120,536.97 = 76,039.53/x
  3. Step 3: Cross multiply
    87,529.86x = 120,536.97 × 76,039.53
  4. Step 4: Simplify right side
    87,529.86x = 9,165,574,343.92
  5. Step 5: Solve for x
    x = 9,165,574,343.92/87,529.86
  6. Step 6: Final answer
    x = 104,713.69

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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.