Home / 74,272.22-102,492.81-40,280.09

Finding the Fourth Proportional to 74,272.22, 102,492.81 and 40,280.09

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Solution

The fourth proportional to 74,272.22, 102,492.81 and 40,280.09 is: 55,584.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,272.22 : 102,492.81 = 40,280.09 : x
  2. Step 2: Convert to fraction form
    74,272.22/102,492.81 = 40,280.09/x
  3. Step 3: Cross multiply
    74,272.22x = 102,492.81 × 40,280.09
  4. Step 4: Simplify right side
    74,272.22x = 4,128,419,098.69
  5. Step 5: Solve for x
    x = 4,128,419,098.69/74,272.22
  6. Step 6: Final answer
    x = 55,584.97

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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.