Home / 66,513.22-91,788.78-36,298.78

Finding the Fourth Proportional to 66,513.22, 91,788.78 and 36,298.78

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Solution

The fourth proportional to 66,513.22, 91,788.78 and 36,298.78 is: 50,092.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,513.22 : 91,788.78 = 36,298.78 : x
  2. Step 2: Convert to fraction form
    66,513.22/91,788.78 = 36,298.78/x
  3. Step 3: Cross multiply
    66,513.22x = 91,788.78 × 36,298.78
  4. Step 4: Simplify right side
    66,513.22x = 3,331,820,731.69
  5. Step 5: Solve for x
    x = 3,331,820,731.69/66,513.22
  6. Step 6: Final answer
    x = 50,092.61

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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.