Home / 80,668.14-121,035.44-35,665.82

Finding the Fourth Proportional to 80,668.14, 121,035.44 and 35,665.82

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Solution

The fourth proportional to 80,668.14, 121,035.44 and 35,665.82 is: 53,513.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,668.14 : 121,035.44 = 35,665.82 : x
  2. Step 2: Convert to fraction form
    80,668.14/121,035.44 = 35,665.82/x
  3. Step 3: Cross multiply
    80,668.14x = 121,035.44 × 35,665.82
  4. Step 4: Simplify right side
    80,668.14x = 4,316,828,216.66
  5. Step 5: Solve for x
    x = 4,316,828,216.66/80,668.14
  6. Step 6: Final answer
    x = 53,513.42

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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.