Home / 83,904.81-115,786.44-45,665.10

Finding the Fourth Proportional to 83,904.81, 115,786.44 and 45,665.10

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Solution

The fourth proportional to 83,904.81, 115,786.44 and 45,665.10 is: 63,016.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,904.81 : 115,786.44 = 45,665.10 : x
  2. Step 2: Convert to fraction form
    83,904.81/115,786.44 = 45,665.10/x
  3. Step 3: Cross multiply
    83,904.81x = 115,786.44 × 45,665.10
  4. Step 4: Simplify right side
    83,904.81x = 5,287,399,361.24
  5. Step 5: Solve for x
    x = 5,287,399,361.24/83,904.81
  6. Step 6: Final answer
    x = 63,016.64

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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.