Home / 87,804.28-121,170.20-47,518.03

Finding the Fourth Proportional to 87,804.28, 121,170.20 and 47,518.03

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Solution

The fourth proportional to 87,804.28, 121,170.20 and 47,518.03 is: 65,575.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,804.28 : 121,170.20 = 47,518.03 : x
  2. Step 2: Convert to fraction form
    87,804.28/121,170.20 = 47,518.03/x
  3. Step 3: Cross multiply
    87,804.28x = 121,170.20 × 47,518.03
  4. Step 4: Simplify right side
    87,804.28x = 5,757,769,014.58
  5. Step 5: Solve for x
    x = 5,757,769,014.58/87,804.28
  6. Step 6: Final answer
    x = 65,575.04

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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.