Home / 74,076.73-102,225.11-40,084.47

Finding the Fourth Proportional to 74,076.73, 102,225.11 and 40,084.47

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Solution

The fourth proportional to 74,076.73, 102,225.11 and 40,084.47 is: 55,316.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,076.73 : 102,225.11 = 40,084.47 : x
  2. Step 2: Convert to fraction form
    74,076.73/102,225.11 = 40,084.47/x
  3. Step 3: Cross multiply
    74,076.73x = 102,225.11 × 40,084.47
  4. Step 4: Simplify right side
    74,076.73x = 4,097,639,154.62
  5. Step 5: Solve for x
    x = 4,097,639,154.62/74,076.73
  6. Step 6: Final answer
    x = 55,316.15

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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.