Home / 66,806.48-92,170.06-38,105.51

Finding the Fourth Proportional to 66,806.48, 92,170.06 and 38,105.51

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Solution

The fourth proportional to 66,806.48, 92,170.06 and 38,105.51 is: 52,572.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,806.48 : 92,170.06 = 38,105.51 : x
  2. Step 2: Convert to fraction form
    66,806.48/92,170.06 = 38,105.51/x
  3. Step 3: Cross multiply
    66,806.48x = 92,170.06 × 38,105.51
  4. Step 4: Simplify right side
    66,806.48x = 3,512,187,143.03
  5. Step 5: Solve for x
    x = 3,512,187,143.03/66,806.48
  6. Step 6: Final answer
    x = 52,572.55

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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.