Home / 74,575.71-111,863.61-51,131.07

Finding the Fourth Proportional to 74,575.71, 111,863.61 and 51,131.07

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Solution

The fourth proportional to 74,575.71, 111,863.61 and 51,131.07 is: 76,696.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,575.71 : 111,863.61 = 51,131.07 : x
  2. Step 2: Convert to fraction form
    74,575.71/111,863.61 = 51,131.07/x
  3. Step 3: Cross multiply
    74,575.71x = 111,863.61 × 51,131.07
  4. Step 4: Simplify right side
    74,575.71x = 5,719,706,073.36
  5. Step 5: Solve for x
    x = 5,719,706,073.36/74,575.71
  6. Step 6: Final answer
    x = 76,696.64

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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.