Home / 87,846.30-121,247.82-68,688.18

Finding the Fourth Proportional to 87,846.30, 121,247.82 and 68,688.18

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Solution

The fourth proportional to 87,846.30, 121,247.82 and 68,688.18 is: 94,805.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,846.30 : 121,247.82 = 68,688.18 : x
  2. Step 2: Convert to fraction form
    87,846.30/121,247.82 = 68,688.18/x
  3. Step 3: Cross multiply
    87,846.30x = 121,247.82 × 68,688.18
  4. Step 4: Simplify right side
    87,846.30x = 8,328,292,084.77
  5. Step 5: Solve for x
    x = 8,328,292,084.77/87,846.30
  6. Step 6: Final answer
    x = 94,805.27

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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.