Home / 87,877.89-121,271.61-47,591.73

Finding the Fourth Proportional to 87,877.89, 121,271.61 and 47,591.73

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Solution

The fourth proportional to 87,877.89, 121,271.61 and 47,591.73 is: 65,676.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,877.89 : 121,271.61 = 47,591.73 : x
  2. Step 2: Convert to fraction form
    87,877.89/121,271.61 = 47,591.73/x
  3. Step 3: Cross multiply
    87,877.89x = 121,271.61 × 47,591.73
  4. Step 4: Simplify right side
    87,877.89x = 5,771,525,719.79
  5. Step 5: Solve for x
    x = 5,771,525,719.79/87,877.89
  6. Step 6: Final answer
    x = 65,676.65

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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.