Home / 87,495.99-120,743.42-49,770.15

Finding the Fourth Proportional to 87,495.99, 120,743.42 and 49,770.15

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Solution

The fourth proportional to 87,495.99, 120,743.42 and 49,770.15 is: 68,682.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,495.99 : 120,743.42 = 49,770.15 : x
  2. Step 2: Convert to fraction form
    87,495.99/120,743.42 = 49,770.15/x
  3. Step 3: Cross multiply
    87,495.99x = 120,743.42 × 49,770.15
  4. Step 4: Simplify right side
    87,495.99x = 6,009,417,876.06
  5. Step 5: Solve for x
    x = 6,009,417,876.06/87,495.99
  6. Step 6: Final answer
    x = 68,682.21

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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.