Home / 66,619.05-91,870.75-43,614.54

Finding the Fourth Proportional to 66,619.05, 91,870.75 and 43,614.54

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Solution

The fourth proportional to 66,619.05, 91,870.75 and 43,614.54 is: 60,146.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,619.05 : 91,870.75 = 43,614.54 : x
  2. Step 2: Convert to fraction form
    66,619.05/91,870.75 = 43,614.54/x
  3. Step 3: Cross multiply
    66,619.05x = 91,870.75 × 43,614.54
  4. Step 4: Simplify right side
    66,619.05x = 4,006,900,621.35
  5. Step 5: Solve for x
    x = 4,006,900,621.35/66,619.05
  6. Step 6: Final answer
    x = 60,146.47

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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.