Home / 54,346.32-81,448.56-21,033.36

Finding the Fourth Proportional to 54,346.32, 81,448.56 and 21,033.36

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Solution

The fourth proportional to 54,346.32, 81,448.56 and 21,033.36 is: 31,522.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,346.32 : 81,448.56 = 21,033.36 : x
  2. Step 2: Convert to fraction form
    54,346.32/81,448.56 = 21,033.36/x
  3. Step 3: Cross multiply
    54,346.32x = 81,448.56 × 21,033.36
  4. Step 4: Simplify right side
    54,346.32x = 1,713,136,883.96
  5. Step 5: Solve for x
    x = 1,713,136,883.96/54,346.32
  6. Step 6: Final answer
    x = 31,522.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.