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Finding the Fourth Proportional to 55,807.45, 83,723.31 and 18,371.34

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Solution

The fourth proportional to 55,807.45, 83,723.31 and 18,371.34 is: 27,561.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,807.45 : 83,723.31 = 18,371.34 : x
  2. Step 2: Convert to fraction form
    55,807.45/83,723.31 = 18,371.34/x
  3. Step 3: Cross multiply
    55,807.45x = 83,723.31 × 18,371.34
  4. Step 4: Simplify right side
    55,807.45x = 1,538,109,393.94
  5. Step 5: Solve for x
    x = 1,538,109,393.94/55,807.45
  6. Step 6: Final answer
    x = 27,561.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.