Home / 76,661.03-105,791.38-42,668.97

Finding the Fourth Proportional to 76,661.03, 105,791.38 and 42,668.97

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Solution

The fourth proportional to 76,661.03, 105,791.38 and 42,668.97 is: 58,882.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,661.03 : 105,791.38 = 42,668.97 : x
  2. Step 2: Convert to fraction form
    76,661.03/105,791.38 = 42,668.97/x
  3. Step 3: Cross multiply
    76,661.03x = 105,791.38 × 42,668.97
  4. Step 4: Simplify right side
    76,661.03x = 4,514,009,219.48
  5. Step 5: Solve for x
    x = 4,514,009,219.48/76,661.03
  6. Step 6: Final answer
    x = 58,882.71

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1.5x scale

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.