Home / 87,880.89-121,275.75-47,594.73

Finding the Fourth Proportional to 87,880.89, 121,275.75 and 47,594.73

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Solution

The fourth proportional to 87,880.89, 121,275.75 and 47,594.73 is: 65,680.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,880.89 : 121,275.75 = 47,594.73 : x
  2. Step 2: Convert to fraction form
    87,880.89/121,275.75 = 47,594.73/x
  3. Step 3: Cross multiply
    87,880.89x = 121,275.75 × 47,594.73
  4. Step 4: Simplify right side
    87,880.89x = 5,772,086,576.80
  5. Step 5: Solve for x
    x = 5,772,086,576.80/87,880.89
  6. Step 6: Final answer
    x = 65,680.79

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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.