Home / 87,680.48-120,998.97-47,394.23

Finding the Fourth Proportional to 87,680.48, 120,998.97 and 47,394.23

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Solution

The fourth proportional to 87,680.48, 120,998.97 and 47,394.23 is: 65,403.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,680.48 : 120,998.97 = 47,394.23 : x
  2. Step 2: Convert to fraction form
    87,680.48/120,998.97 = 47,394.23/x
  3. Step 3: Cross multiply
    87,680.48x = 120,998.97 × 47,394.23
  4. Step 4: Simplify right side
    87,680.48x = 5,734,652,408.95
  5. Step 5: Solve for x
    x = 5,734,652,408.95/87,680.48
  6. Step 6: Final answer
    x = 65,403.98

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1.5x scale

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.