Home / 79,516.32-109,732.80-43,709.44

Finding the Fourth Proportional to 79,516.32, 109,732.80 and 43,709.44

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Solution

The fourth proportional to 79,516.32, 109,732.80 and 43,709.44 is: 60,319.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,516.32 : 109,732.80 = 43,709.44 : x
  2. Step 2: Convert to fraction form
    79,516.32/109,732.80 = 43,709.44/x
  3. Step 3: Cross multiply
    79,516.32x = 109,732.80 × 43,709.44
  4. Step 4: Simplify right side
    79,516.32x = 4,796,359,237.63
  5. Step 5: Solve for x
    x = 4,796,359,237.63/79,516.32
  6. Step 6: Final answer
    x = 60,319.18

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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.