Home / 74,120.58-102,287.61-40,584.42

Finding the Fourth Proportional to 74,120.58, 102,287.61 and 40,584.42

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Solution

The fourth proportional to 74,120.58, 102,287.61 and 40,584.42 is: 56,007.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,120.58 : 102,287.61 = 40,584.42 : x
  2. Step 2: Convert to fraction form
    74,120.58/102,287.61 = 40,584.42/x
  3. Step 3: Cross multiply
    74,120.58x = 102,287.61 × 40,584.42
  4. Step 4: Simplify right side
    74,120.58x = 4,151,283,325.04
  5. Step 5: Solve for x
    x = 4,151,283,325.04/74,120.58
  6. Step 6: Final answer
    x = 56,007.16

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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.