Home / 66,843.18-92,240.88-39,969.84

Finding the Fourth Proportional to 66,843.18, 92,240.88 and 39,969.84

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Solution

The fourth proportional to 66,843.18, 92,240.88 and 39,969.84 is: 55,156.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,843.18 : 92,240.88 = 39,969.84 : x
  2. Step 2: Convert to fraction form
    66,843.18/92,240.88 = 39,969.84/x
  3. Step 3: Cross multiply
    66,843.18x = 92,240.88 × 39,969.84
  4. Step 4: Simplify right side
    66,843.18x = 3,686,853,215.06
  5. Step 5: Solve for x
    x = 3,686,853,215.06/66,843.18
  6. Step 6: Final answer
    x = 55,156.76

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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.