Home / 87,858.90-121,244.77-47,571.83

Finding the Fourth Proportional to 87,858.90, 121,244.77 and 47,571.83

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Solution

The fourth proportional to 87,858.90, 121,244.77 and 47,571.83 is: 65,648.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,858.90 : 121,244.77 = 47,571.83 : x
  2. Step 2: Convert to fraction form
    87,858.90/121,244.77 = 47,571.83/x
  3. Step 3: Cross multiply
    87,858.90x = 121,244.77 × 47,571.83
  4. Step 4: Simplify right side
    87,858.90x = 5,767,835,586.83
  5. Step 5: Solve for x
    x = 5,767,835,586.83/87,858.90
  6. Step 6: Final answer
    x = 65,648.85

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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.