Home / 87,871.77-121,262.44-47,584.61

Finding the Fourth Proportional to 87,871.77, 121,262.44 and 47,584.61

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Solution

The fourth proportional to 87,871.77, 121,262.44 and 47,584.61 is: 65,666.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,871.77 : 121,262.44 = 47,584.61 : x
  2. Step 2: Convert to fraction form
    87,871.77/121,262.44 = 47,584.61/x
  3. Step 3: Cross multiply
    87,871.77x = 121,262.44 × 47,584.61
  4. Step 4: Simplify right side
    87,871.77x = 5,770,225,677.13
  5. Step 5: Solve for x
    x = 5,770,225,677.13/87,871.77
  6. Step 6: Final answer
    x = 65,666.43

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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.