Home / 79,646.54-109,911.38-43,835.78

Finding the Fourth Proportional to 79,646.54, 109,911.38 and 43,835.78

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Solution

The fourth proportional to 79,646.54, 109,911.38 and 43,835.78 is: 60,492.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,646.54 : 109,911.38 = 43,835.78 : x
  2. Step 2: Convert to fraction form
    79,646.54/109,911.38 = 43,835.78/x
  3. Step 3: Cross multiply
    79,646.54x = 109,911.38 × 43,835.78
  4. Step 4: Simplify right side
    79,646.54x = 4,818,051,375.35
  5. Step 5: Solve for x
    x = 4,818,051,375.35/79,646.54
  6. Step 6: Final answer
    x = 60,492.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.