Home / 74,551.25-102,942.81-69,142.19

Finding the Fourth Proportional to 74,551.25, 102,942.81 and 69,142.19

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Solution

The fourth proportional to 74,551.25, 102,942.81 and 69,142.19 is: 95,473.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,551.25 : 102,942.81 = 69,142.19 : x
  2. Step 2: Convert to fraction form
    74,551.25/102,942.81 = 69,142.19/x
  3. Step 3: Cross multiply
    74,551.25x = 102,942.81 × 69,142.19
  4. Step 4: Simplify right side
    74,551.25x = 7,117,691,844.79
  5. Step 5: Solve for x
    x = 7,117,691,844.79/74,551.25
  6. Step 6: Final answer
    x = 95,473.82

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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.