Home / 70,942.78-97,901.68-39,112.82

Finding the Fourth Proportional to 70,942.78, 97,901.68 and 39,112.82

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Solution

The fourth proportional to 70,942.78, 97,901.68 and 39,112.82 is: 53,976.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,942.78 : 97,901.68 = 39,112.82 : x
  2. Step 2: Convert to fraction form
    70,942.78/97,901.68 = 39,112.82/x
  3. Step 3: Cross multiply
    70,942.78x = 97,901.68 × 39,112.82
  4. Step 4: Simplify right side
    70,942.78x = 3,829,210,787.54
  5. Step 5: Solve for x
    x = 3,829,210,787.54/70,942.78
  6. Step 6: Final answer
    x = 53,976.05

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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.