Home / 72,730.85-109,095.17-32,721.57

Finding the Fourth Proportional to 72,730.85, 109,095.17 and 32,721.57

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Solution

The fourth proportional to 72,730.85, 109,095.17 and 32,721.57 is: 49,081.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,730.85 : 109,095.17 = 32,721.57 : x
  2. Step 2: Convert to fraction form
    72,730.85/109,095.17 = 32,721.57/x
  3. Step 3: Cross multiply
    72,730.85x = 109,095.17 × 32,721.57
  4. Step 4: Simplify right side
    72,730.85x = 3,569,765,514.55
  5. Step 5: Solve for x
    x = 3,569,765,514.55/72,730.85
  6. Step 6: Final answer
    x = 49,081.86

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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.