Home / 71,913.06-107,822.88-29,781.72

Finding the Fourth Proportional to 71,913.06, 107,822.88 and 29,781.72

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Solution

The fourth proportional to 71,913.06, 107,822.88 and 29,781.72 is: 44,653.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,913.06 : 107,822.88 = 29,781.72 : x
  2. Step 2: Convert to fraction form
    71,913.06/107,822.88 = 29,781.72/x
  3. Step 3: Cross multiply
    71,913.06x = 107,822.88 × 29,781.72
  4. Step 4: Simplify right side
    71,913.06x = 3,211,150,821.75
  5. Step 5: Solve for x
    x = 3,211,150,821.75/71,913.06
  6. Step 6: Final answer
    x = 44,653.24

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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.