Home / 87,873.45-121,263.86-47,586.89

Finding the Fourth Proportional to 87,873.45, 121,263.86 and 47,586.89

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Solution

The fourth proportional to 87,873.45, 121,263.86 and 47,586.89 is: 65,669.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,873.45 : 121,263.86 = 47,586.89 : x
  2. Step 2: Convert to fraction form
    87,873.45/121,263.86 = 47,586.89/x
  3. Step 3: Cross multiply
    87,873.45x = 121,263.86 × 47,586.89
  4. Step 4: Simplify right side
    87,873.45x = 5,770,569,122.54
  5. Step 5: Solve for x
    x = 5,770,569,122.54/87,873.45
  6. Step 6: Final answer
    x = 65,669.09

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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.