Home / 84,086.40-116,039.04-46,361.28

Finding the Fourth Proportional to 84,086.40, 116,039.04 and 46,361.28

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Solution

The fourth proportional to 84,086.40, 116,039.04 and 46,361.28 is: 63,978.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,086.40 : 116,039.04 = 46,361.28 : x
  2. Step 2: Convert to fraction form
    84,086.40/116,039.04 = 46,361.28/x
  3. Step 3: Cross multiply
    84,086.40x = 116,039.04 × 46,361.28
  4. Step 4: Simplify right side
    84,086.40x = 5,379,718,424.37
  5. Step 5: Solve for x
    x = 5,379,718,424.37/84,086.40
  6. Step 6: Final answer
    x = 63,978.46

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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.