Home / 66,222.05-91,385.87-39,013.94

Finding the Fourth Proportional to 66,222.05, 91,385.87 and 39,013.94

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Solution

The fourth proportional to 66,222.05, 91,385.87 and 39,013.94 is: 53,838.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,222.05 : 91,385.87 = 39,013.94 : x
  2. Step 2: Convert to fraction form
    66,222.05/91,385.87 = 39,013.94/x
  3. Step 3: Cross multiply
    66,222.05x = 91,385.87 × 39,013.94
  4. Step 4: Simplify right side
    66,222.05x = 3,565,322,197.03
  5. Step 5: Solve for x
    x = 3,565,322,197.03/66,222.05
  6. Step 6: Final answer
    x = 53,838.90

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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.