Home / 87,683.22-121,003.61-49,959.90

Finding the Fourth Proportional to 87,683.22, 121,003.61 and 49,959.90

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Solution

The fourth proportional to 87,683.22, 121,003.61 and 49,959.90 is: 68,945.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,683.22 : 121,003.61 = 49,959.90 : x
  2. Step 2: Convert to fraction form
    87,683.22/121,003.61 = 49,959.90/x
  3. Step 3: Cross multiply
    87,683.22x = 121,003.61 × 49,959.90
  4. Step 4: Simplify right side
    87,683.22x = 6,045,328,005.44
  5. Step 5: Solve for x
    x = 6,045,328,005.44/87,683.22
  6. Step 6: Final answer
    x = 68,945.10

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1.5x scale

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.