Home / 66,082.69-91,152.62-39,206.17

Finding the Fourth Proportional to 66,082.69, 91,152.62 and 39,206.17

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Solution

The fourth proportional to 66,082.69, 91,152.62 and 39,206.17 is: 54,079.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,082.69 : 91,152.62 = 39,206.17 : x
  2. Step 2: Convert to fraction form
    66,082.69/91,152.62 = 39,206.17/x
  3. Step 3: Cross multiply
    66,082.69x = 91,152.62 × 39,206.17
  4. Step 4: Simplify right side
    66,082.69x = 3,573,744,691.75
  5. Step 5: Solve for x
    x = 3,573,744,691.75/66,082.69
  6. Step 6: Final answer
    x = 54,079.89

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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.