Home / 87,869.77-121,260.86-47,583.54

Finding the Fourth Proportional to 87,869.77, 121,260.86 and 47,583.54

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Solution

The fourth proportional to 87,869.77, 121,260.86 and 47,583.54 is: 65,665.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,869.77 : 121,260.86 = 47,583.54 : x
  2. Step 2: Convert to fraction form
    87,869.77/121,260.86 = 47,583.54/x
  3. Step 3: Cross multiply
    87,869.77x = 121,260.86 × 47,583.54
  4. Step 4: Simplify right side
    87,869.77x = 5,770,020,982.24
  5. Step 5: Solve for x
    x = 5,770,020,982.24/87,869.77
  6. Step 6: Final answer
    x = 65,665.60

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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.