Home / 87,238.74-120,435.27-58,708.41

Finding the Fourth Proportional to 87,238.74, 120,435.27 and 58,708.41

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Solution

The fourth proportional to 87,238.74, 120,435.27 and 58,708.41 is: 81,048.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,238.74 : 120,435.27 = 58,708.41 : x
  2. Step 2: Convert to fraction form
    87,238.74/120,435.27 = 58,708.41/x
  3. Step 3: Cross multiply
    87,238.74x = 120,435.27 × 58,708.41
  4. Step 4: Simplify right side
    87,238.74x = 7,070,563,209.62
  5. Step 5: Solve for x
    x = 7,070,563,209.62/87,238.74
  6. Step 6: Final answer
    x = 81,048.43

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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.