Home / 66,151.05-91,285.83-39,292.85

Finding the Fourth Proportional to 66,151.05, 91,285.83 and 39,292.85

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Solution

The fourth proportional to 66,151.05, 91,285.83 and 39,292.85 is: 54,222.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,151.05 : 91,285.83 = 39,292.85 : x
  2. Step 2: Convert to fraction form
    66,151.05/91,285.83 = 39,292.85/x
  3. Step 3: Cross multiply
    66,151.05x = 91,285.83 × 39,292.85
  4. Step 4: Simplify right side
    66,151.05x = 3,586,879,968.89
  5. Step 5: Solve for x
    x = 3,586,879,968.89/66,151.05
  6. Step 6: Final answer
    x = 54,222.57

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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.