Home / 66,716.13-92,143.86-45,458.49

Finding the Fourth Proportional to 66,716.13, 92,143.86 and 45,458.49

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Solution

The fourth proportional to 66,716.13, 92,143.86 and 45,458.49 is: 62,784.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,716.13 : 92,143.86 = 45,458.49 : x
  2. Step 2: Convert to fraction form
    66,716.13/92,143.86 = 45,458.49/x
  3. Step 3: Cross multiply
    66,716.13x = 92,143.86 × 45,458.49
  4. Step 4: Simplify right side
    66,716.13x = 4,188,720,738.37
  5. Step 5: Solve for x
    x = 4,188,720,738.37/66,716.13
  6. Step 6: Final answer
    x = 62,784.23

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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.