Home / 65,961.22-91,038.18-50,018.80

Finding the Fourth Proportional to 65,961.22, 91,038.18 and 50,018.80

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Solution

The fourth proportional to 65,961.22, 91,038.18 and 50,018.80 is: 69,034.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,961.22 : 91,038.18 = 50,018.80 : x
  2. Step 2: Convert to fraction form
    65,961.22/91,038.18 = 50,018.80/x
  3. Step 3: Cross multiply
    65,961.22x = 91,038.18 × 50,018.80
  4. Step 4: Simplify right side
    65,961.22x = 4,553,620,517.78
  5. Step 5: Solve for x
    x = 4,553,620,517.78/65,961.22
  6. Step 6: Final answer
    x = 69,034.81

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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.