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Finding the Fourth Proportional to 96,387.78, 133,009.92 and 53,938.11

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Solution

The fourth proportional to 96,387.78, 133,009.92 and 53,938.11 is: 74,431.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,387.78 : 133,009.92 = 53,938.11 : x
  2. Step 2: Convert to fraction form
    96,387.78/133,009.92 = 53,938.11/x
  3. Step 3: Cross multiply
    96,387.78x = 133,009.92 × 53,938.11
  4. Step 4: Simplify right side
    96,387.78x = 7,174,303,696.05
  5. Step 5: Solve for x
    x = 7,174,303,696.05/96,387.78
  6. Step 6: Final answer
    x = 74,431.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.