Home / 32,707.60-49,134.30-31,379.20

Finding the Fourth Proportional to 32,707.60, 49,134.30 and 31,379.20

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Solution

The fourth proportional to 32,707.60, 49,134.30 and 31,379.20 is: 47,138.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,707.60 : 49,134.30 = 31,379.20 : x
  2. Step 2: Convert to fraction form
    32,707.60/49,134.30 = 31,379.20/x
  3. Step 3: Cross multiply
    32,707.60x = 49,134.30 × 31,379.20
  4. Step 4: Simplify right side
    32,707.60x = 1,541,795,026.56
  5. Step 5: Solve for x
    x = 1,541,795,026.56/32,707.60
  6. Step 6: Final answer
    x = 47,138.74

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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.