Home / 66,635.35-91,954.28-36,420.43

Finding the Fourth Proportional to 66,635.35, 91,954.28 and 36,420.43

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Solution

The fourth proportional to 66,635.35, 91,954.28 and 36,420.43 is: 50,258.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,635.35 : 91,954.28 = 36,420.43 : x
  2. Step 2: Convert to fraction form
    66,635.35/91,954.28 = 36,420.43/x
  3. Step 3: Cross multiply
    66,635.35x = 91,954.28 × 36,420.43
  4. Step 4: Simplify right side
    66,635.35x = 3,349,014,279.11
  5. Step 5: Solve for x
    x = 3,349,014,279.11/66,635.35
  6. Step 6: Final answer
    x = 50,258.83

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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.