Home / 77,815.73-116,760.05-38,351.32

Finding the Fourth Proportional to 77,815.73, 116,760.05 and 38,351.32

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Solution

The fourth proportional to 77,815.73, 116,760.05 and 38,351.32 is: 57,544.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,815.73 : 116,760.05 = 38,351.32 : x
  2. Step 2: Convert to fraction form
    77,815.73/116,760.05 = 38,351.32/x
  3. Step 3: Cross multiply
    77,815.73x = 116,760.05 × 38,351.32
  4. Step 4: Simplify right side
    77,815.73x = 4,477,901,844.74
  5. Step 5: Solve for x
    x = 4,477,901,844.74/77,815.73
  6. Step 6: Final answer
    x = 57,544.94

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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.