Home / 66,844.92-92,237.22-39,977.64

Finding the Fourth Proportional to 66,844.92, 92,237.22 and 39,977.64

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Solution

The fourth proportional to 66,844.92, 92,237.22 and 39,977.64 is: 55,163.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,844.92 : 92,237.22 = 39,977.64 : x
  2. Step 2: Convert to fraction form
    66,844.92/92,237.22 = 39,977.64/x
  3. Step 3: Cross multiply
    66,844.92x = 92,237.22 × 39,977.64
  4. Step 4: Simplify right side
    66,844.92x = 3,687,426,375.76
  5. Step 5: Solve for x
    x = 3,687,426,375.76/66,844.92
  6. Step 6: Final answer
    x = 55,163.90

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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.