Home / 66,839.50-92,238.51-39,983.14

Finding the Fourth Proportional to 66,839.50, 92,238.51 and 39,983.14

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Solution

The fourth proportional to 66,839.50, 92,238.51 and 39,983.14 is: 55,176.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,839.50 : 92,238.51 = 39,983.14 : x
  2. Step 2: Convert to fraction form
    66,839.50/92,238.51 = 39,983.14/x
  3. Step 3: Cross multiply
    66,839.50x = 92,238.51 × 39,983.14
  4. Step 4: Simplify right side
    66,839.50x = 3,687,985,258.72
  5. Step 5: Solve for x
    x = 3,687,985,258.72/66,839.50
  6. Step 6: Final answer
    x = 55,176.73

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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.