Home / 74,660.25-103,029.71-40,668.34

Finding the Fourth Proportional to 74,660.25, 103,029.71 and 40,668.34

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Solution

The fourth proportional to 74,660.25, 103,029.71 and 40,668.34 is: 56,121.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,660.25 : 103,029.71 = 40,668.34 : x
  2. Step 2: Convert to fraction form
    74,660.25/103,029.71 = 40,668.34/x
  3. Step 3: Cross multiply
    74,660.25x = 103,029.71 × 40,668.34
  4. Step 4: Simplify right side
    74,660.25x = 4,190,047,276.38
  5. Step 5: Solve for x
    x = 4,190,047,276.38/74,660.25
  6. Step 6: Final answer
    x = 56,121.53

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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.