Home / 66,082.75-91,152.70-39,206.23

Finding the Fourth Proportional to 66,082.75, 91,152.70 and 39,206.23

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Solution

The fourth proportional to 66,082.75, 91,152.70 and 39,206.23 is: 54,079.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,082.75 : 91,152.70 = 39,206.23 : x
  2. Step 2: Convert to fraction form
    66,082.75/91,152.70 = 39,206.23/x
  3. Step 3: Cross multiply
    66,082.75x = 91,152.70 × 39,206.23
  4. Step 4: Simplify right side
    66,082.75x = 3,573,753,721.32
  5. Step 5: Solve for x
    x = 3,573,753,721.32/66,082.75
  6. Step 6: Final answer
    x = 54,079.98

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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.