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Finding the Fourth Proportional to 55,329.40, 82,983.30 and 18,393.40

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Solution

The fourth proportional to 55,329.40, 82,983.30 and 18,393.40 is: 27,586.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,329.40 : 82,983.30 = 18,393.40 : x
  2. Step 2: Convert to fraction form
    55,329.40/82,983.30 = 18,393.40/x
  3. Step 3: Cross multiply
    55,329.40x = 82,983.30 × 18,393.40
  4. Step 4: Simplify right side
    55,329.40x = 1,526,345,030.22
  5. Step 5: Solve for x
    x = 1,526,345,030.22/55,329.40
  6. Step 6: Final answer
    x = 27,586.51

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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.