Home / 76,605.36-115,015.68-39,192.27

Finding the Fourth Proportional to 76,605.36, 115,015.68 and 39,192.27

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Solution

The fourth proportional to 76,605.36, 115,015.68 and 39,192.27 is: 58,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,605.36 : 115,015.68 = 39,192.27 : x
  2. Step 2: Convert to fraction form
    76,605.36/115,015.68 = 39,192.27/x
  3. Step 3: Cross multiply
    76,605.36x = 115,015.68 × 39,192.27
  4. Step 4: Simplify right side
    76,605.36x = 4,507,725,584.79
  5. Step 5: Solve for x
    x = 4,507,725,584.79/76,605.36
  6. Step 6: Final answer
    x = 58,843.47

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1.5x scale

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.