Home / 79,442.16-109,631.50-43,635.48

Finding the Fourth Proportional to 79,442.16, 109,631.50 and 43,635.48

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Solution

The fourth proportional to 79,442.16, 109,631.50 and 43,635.48 is: 60,217.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,442.16 : 109,631.50 = 43,635.48 : x
  2. Step 2: Convert to fraction form
    79,442.16/109,631.50 = 43,635.48/x
  3. Step 3: Cross multiply
    79,442.16x = 109,631.50 × 43,635.48
  4. Step 4: Simplify right side
    79,442.16x = 4,783,823,125.62
  5. Step 5: Solve for x
    x = 4,783,823,125.62/79,442.16
  6. Step 6: Final answer
    x = 60,217.69

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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.