Home / 87,947.98-121,367.03-47,661.39

Finding the Fourth Proportional to 87,947.98, 121,367.03 and 47,661.39

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Solution

The fourth proportional to 87,947.98, 121,367.03 and 47,661.39 is: 65,772.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,947.98 : 121,367.03 = 47,661.39 : x
  2. Step 2: Convert to fraction form
    87,947.98/121,367.03 = 47,661.39/x
  3. Step 3: Cross multiply
    87,947.98x = 121,367.03 × 47,661.39
  4. Step 4: Simplify right side
    87,947.98x = 5,784,521,111.66
  5. Step 5: Solve for x
    x = 5,784,521,111.66/87,947.98
  6. Step 6: Final answer
    x = 65,772.08

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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.