Home / 72,815.46-109,137.96-27,807.33

Finding the Fourth Proportional to 72,815.46, 109,137.96 and 27,807.33

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Solution

The fourth proportional to 72,815.46, 109,137.96 and 27,807.33 is: 41,678.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,815.46 : 109,137.96 = 27,807.33 : x
  2. Step 2: Convert to fraction form
    72,815.46/109,137.96 = 27,807.33/x
  3. Step 3: Cross multiply
    72,815.46x = 109,137.96 × 27,807.33
  4. Step 4: Simplify right side
    72,815.46x = 3,034,835,269.25
  5. Step 5: Solve for x
    x = 3,034,835,269.25/72,815.46
  6. Step 6: Final answer
    x = 41,678.45

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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.