Home / 87,871.52-121,262.09-47,584.36

Finding the Fourth Proportional to 87,871.52, 121,262.09 and 47,584.36

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Solution

The fourth proportional to 87,871.52, 121,262.09 and 47,584.36 is: 65,666.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,871.52 : 121,262.09 = 47,584.36 : x
  2. Step 2: Convert to fraction form
    87,871.52/121,262.09 = 47,584.36/x
  3. Step 3: Cross multiply
    87,871.52x = 121,262.09 × 47,584.36
  4. Step 4: Simplify right side
    87,871.52x = 5,770,178,641.76
  5. Step 5: Solve for x
    x = 5,770,178,641.76/87,871.52
  6. Step 6: Final answer
    x = 65,666.09

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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.