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Finding the Fourth Proportional to 79,569.58, 109,807.11 and 45,578.05

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Solution

The fourth proportional to 79,569.58, 109,807.11 and 45,578.05 is: 62,898.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,569.58 : 109,807.11 = 45,578.05 : x
  2. Step 2: Convert to fraction form
    79,569.58/109,807.11 = 45,578.05/x
  3. Step 3: Cross multiply
    79,569.58x = 109,807.11 × 45,578.05
  4. Step 4: Simplify right side
    79,569.58x = 5,004,793,949.94
  5. Step 5: Solve for x
    x = 5,004,793,949.94/79,569.58
  6. Step 6: Final answer
    x = 62,898.33

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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.