Home / 74,560-102,839.64-45,842.04

Finding the Fourth Proportional to 74,560, 102,839.64 and 45,842.04

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Solution

The fourth proportional to 74,560, 102,839.64 and 45,842.04 is: 63,229.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,560 : 102,839.64 = 45,842.04 : x
  2. Step 2: Convert to fraction form
    74,560/102,839.64 = 45,842.04/x
  3. Step 3: Cross multiply
    74,560x = 102,839.64 × 45,842.04
  4. Step 4: Simplify right side
    74,560x = 4,714,378,890.47
  5. Step 5: Solve for x
    x = 4,714,378,890.47/74,560
  6. Step 6: Final answer
    x = 63,229.33

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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.