Home / 87,898.54-121,220.24-57,672.37

Finding the Fourth Proportional to 87,898.54, 121,220.24 and 57,672.37

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Solution

The fourth proportional to 87,898.54, 121,220.24 and 57,672.37 is: 79,535.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,898.54 : 121,220.24 = 57,672.37 : x
  2. Step 2: Convert to fraction form
    87,898.54/121,220.24 = 57,672.37/x
  3. Step 3: Cross multiply
    87,898.54x = 121,220.24 × 57,672.37
  4. Step 4: Simplify right side
    87,898.54x = 6,991,058,532.77
  5. Step 5: Solve for x
    x = 6,991,058,532.77/87,898.54
  6. Step 6: Final answer
    x = 79,535.55

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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.