Home / 87,212.48-120,389.80-58,956.44

Finding the Fourth Proportional to 87,212.48, 120,389.80 and 58,956.44

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Solution

The fourth proportional to 87,212.48, 120,389.80 and 58,956.44 is: 81,384.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,212.48 : 120,389.80 = 58,956.44 : x
  2. Step 2: Convert to fraction form
    87,212.48/120,389.80 = 58,956.44/x
  3. Step 3: Cross multiply
    87,212.48x = 120,389.80 × 58,956.44
  4. Step 4: Simplify right side
    87,212.48x = 7,097,754,020.31
  5. Step 5: Solve for x
    x = 7,097,754,020.31/87,212.48
  6. Step 6: Final answer
    x = 81,384.61

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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.