Home / 55,530.30-76,631.19-30,379.50

Finding the Fourth Proportional to 55,530.30, 76,631.19 and 30,379.50

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Solution

The fourth proportional to 55,530.30, 76,631.19 and 30,379.50 is: 41,923.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,530.30 : 76,631.19 = 30,379.50 : x
  2. Step 2: Convert to fraction form
    55,530.30/76,631.19 = 30,379.50/x
  3. Step 3: Cross multiply
    55,530.30x = 76,631.19 × 30,379.50
  4. Step 4: Simplify right side
    55,530.30x = 2,328,017,236.61
  5. Step 5: Solve for x
    x = 2,328,017,236.61/55,530.30
  6. Step 6: Final answer
    x = 41,923.37

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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.