Home / 75,815.80-104,668.64-50,365.80

Finding the Fourth Proportional to 75,815.80, 104,668.64 and 50,365.80

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Solution

The fourth proportional to 75,815.80, 104,668.64 and 50,365.80 is: 69,533.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,815.80 : 104,668.64 = 50,365.80 : x
  2. Step 2: Convert to fraction form
    75,815.80/104,668.64 = 50,365.80/x
  3. Step 3: Cross multiply
    75,815.80x = 104,668.64 × 50,365.80
  4. Step 4: Simplify right side
    75,815.80x = 5,271,719,788.51
  5. Step 5: Solve for x
    x = 5,271,719,788.51/75,815.80
  6. Step 6: Final answer
    x = 69,533.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.