Home / 77,661.60-116,317.44-46,431.36

Finding the Fourth Proportional to 77,661.60, 116,317.44 and 46,431.36

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Solution

The fourth proportional to 77,661.60, 116,317.44 and 46,431.36 is: 69,542.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,661.60 : 116,317.44 = 46,431.36 : x
  2. Step 2: Convert to fraction form
    77,661.60/116,317.44 = 46,431.36/x
  3. Step 3: Cross multiply
    77,661.60x = 116,317.44 × 46,431.36
  4. Step 4: Simplify right side
    77,661.60x = 5,400,776,930.92
  5. Step 5: Solve for x
    x = 5,400,776,930.92/77,661.60
  6. Step 6: Final answer
    x = 69,542.44

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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.