Home / 87,319.20-120,501.57-49,076.50

Finding the Fourth Proportional to 87,319.20, 120,501.57 and 49,076.50

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Solution

The fourth proportional to 87,319.20, 120,501.57 and 49,076.50 is: 67,726.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,319.20 : 120,501.57 = 49,076.50 : x
  2. Step 2: Convert to fraction form
    87,319.20/120,501.57 = 49,076.50/x
  3. Step 3: Cross multiply
    87,319.20x = 120,501.57 × 49,076.50
  4. Step 4: Simplify right side
    87,319.20x = 5,913,795,408.83
  5. Step 5: Solve for x
    x = 5,913,795,408.83/87,319.20
  6. Step 6: Final answer
    x = 67,726.18

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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.