Home / 87,401.25-120,623.76-48,643.02

Finding the Fourth Proportional to 87,401.25, 120,623.76 and 48,643.02

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Solution

The fourth proportional to 87,401.25, 120,623.76 and 48,643.02 is: 67,132.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,401.25 : 120,623.76 = 48,643.02 : x
  2. Step 2: Convert to fraction form
    87,401.25/120,623.76 = 48,643.02/x
  3. Step 3: Cross multiply
    87,401.25x = 120,623.76 × 48,643.02
  4. Step 4: Simplify right side
    87,401.25x = 5,867,503,970.16
  5. Step 5: Solve for x
    x = 5,867,503,970.16/87,401.25
  6. Step 6: Final answer
    x = 67,132.95

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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.