Home / 87,717.07-121,050.83-49,478.44

Finding the Fourth Proportional to 87,717.07, 121,050.83 and 49,478.44

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Solution

The fourth proportional to 87,717.07, 121,050.83 and 49,478.44 is: 68,280.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,717.07 : 121,050.83 = 49,478.44 : x
  2. Step 2: Convert to fraction form
    87,717.07/121,050.83 = 49,478.44/x
  3. Step 3: Cross multiply
    87,717.07x = 121,050.83 × 49,478.44
  4. Step 4: Simplify right side
    87,717.07x = 5,989,405,376.46
  5. Step 5: Solve for x
    x = 5,989,405,376.46/87,717.07
  6. Step 6: Final answer
    x = 68,280.96

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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.