Home / 72,112.56-108,139.62-29,964

Finding the Fourth Proportional to 72,112.56, 108,139.62 and 29,964

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Solution

The fourth proportional to 72,112.56, 108,139.62 and 29,964 is: 44,933.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,112.56 : 108,139.62 = 29,964 : x
  2. Step 2: Convert to fraction form
    72,112.56/108,139.62 = 29,964/x
  3. Step 3: Cross multiply
    72,112.56x = 108,139.62 × 29,964
  4. Step 4: Simplify right side
    72,112.56x = 3,240,295,573.68
  5. Step 5: Solve for x
    x = 3,240,295,573.68/72,112.56
  6. Step 6: Final answer
    x = 44,933.86

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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.