Home / 72,173.43-108,223.18-38,458.66

Finding the Fourth Proportional to 72,173.43, 108,223.18 and 38,458.66

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Solution

The fourth proportional to 72,173.43, 108,223.18 and 38,458.66 is: 57,668.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,173.43 : 108,223.18 = 38,458.66 : x
  2. Step 2: Convert to fraction form
    72,173.43/108,223.18 = 38,458.66/x
  3. Step 3: Cross multiply
    72,173.43x = 108,223.18 × 38,458.66
  4. Step 4: Simplify right side
    72,173.43x = 4,162,118,319.95
  5. Step 5: Solve for x
    x = 4,162,118,319.95/72,173.43
  6. Step 6: Final answer
    x = 57,668.29

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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.