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Finding the Fourth Proportional to 55,530, 83,303.67 and 18,081.24

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Solution

The fourth proportional to 55,530, 83,303.67 and 18,081.24 is: 27,124.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,530 : 83,303.67 = 18,081.24 : x
  2. Step 2: Convert to fraction form
    55,530/83,303.67 = 18,081.24/x
  3. Step 3: Cross multiply
    55,530x = 83,303.67 × 18,081.24
  4. Step 4: Simplify right side
    55,530x = 1,506,233,650.15
  5. Step 5: Solve for x
    x = 1,506,233,650.15/55,530
  6. Step 6: Final answer
    x = 27,124.68

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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.