Home / 69,852.78-96,399.32-39,639.38

Finding the Fourth Proportional to 69,852.78, 96,399.32 and 39,639.38

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Solution

The fourth proportional to 69,852.78, 96,399.32 and 39,639.38 is: 54,703.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,852.78 : 96,399.32 = 39,639.38 : x
  2. Step 2: Convert to fraction form
    69,852.78/96,399.32 = 39,639.38/x
  3. Step 3: Cross multiply
    69,852.78x = 96,399.32 × 39,639.38
  4. Step 4: Simplify right side
    69,852.78x = 3,821,208,597.03
  5. Step 5: Solve for x
    x = 3,821,208,597.03/69,852.78
  6. Step 6: Final answer
    x = 54,703.74

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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.