Home / 66,546.11-99,823.95-20,949.90

Finding the Fourth Proportional to 66,546.11, 99,823.95 and 20,949.90

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Solution

The fourth proportional to 66,546.11, 99,823.95 and 20,949.90 is: 31,426.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,546.11 : 99,823.95 = 20,949.90 : x
  2. Step 2: Convert to fraction form
    66,546.11/99,823.95 = 20,949.90/x
  3. Step 3: Cross multiply
    66,546.11x = 99,823.95 × 20,949.90
  4. Step 4: Simplify right side
    66,546.11x = 2,091,301,770.11
  5. Step 5: Solve for x
    x = 2,091,301,770.11/66,546.11
  6. Step 6: Final answer
    x = 31,426.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.