Home / 54,640.42-81,900.48-21,354.28

Finding the Fourth Proportional to 54,640.42, 81,900.48 and 21,354.28

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Solution

The fourth proportional to 54,640.42, 81,900.48 and 21,354.28 is: 32,007.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,640.42 : 81,900.48 = 21,354.28 : x
  2. Step 2: Convert to fraction form
    54,640.42/81,900.48 = 21,354.28/x
  3. Step 3: Cross multiply
    54,640.42x = 81,900.48 × 21,354.28
  4. Step 4: Simplify right side
    54,640.42x = 1,748,925,782.05
  5. Step 5: Solve for x
    x = 1,748,925,782.05/54,640.42
  6. Step 6: Final answer
    x = 32,007.91

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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.