Home / 79,569.38-119,345.15-20,406.44

Finding the Fourth Proportional to 79,569.38, 119,345.15 and 20,406.44

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Solution

The fourth proportional to 79,569.38, 119,345.15 and 20,406.44 is: 30,607.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,569.38 : 119,345.15 = 20,406.44 : x
  2. Step 2: Convert to fraction form
    79,569.38/119,345.15 = 20,406.44/x
  3. Step 3: Cross multiply
    79,569.38x = 119,345.15 × 20,406.44
  4. Step 4: Simplify right side
    79,569.38x = 2,435,409,992.14
  5. Step 5: Solve for x
    x = 2,435,409,992.14/79,569.38
  6. Step 6: Final answer
    x = 30,607.38

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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.