Home / 87,663.76-120,946.44-49,911.28

Finding the Fourth Proportional to 87,663.76, 120,946.44 and 49,911.28

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Solution

The fourth proportional to 87,663.76, 120,946.44 and 49,911.28 is: 68,860.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,663.76 : 120,946.44 = 49,911.28 : x
  2. Step 2: Convert to fraction form
    87,663.76/120,946.44 = 49,911.28/x
  3. Step 3: Cross multiply
    87,663.76x = 120,946.44 × 49,911.28
  4. Step 4: Simplify right side
    87,663.76x = 6,036,591,631.84
  5. Step 5: Solve for x
    x = 6,036,591,631.84/87,663.76
  6. Step 6: Final answer
    x = 68,860.74

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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.