Home / 54,430.84-81,664.44-21,151.99

Finding the Fourth Proportional to 54,430.84, 81,664.44 and 21,151.99

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Solution

The fourth proportional to 54,430.84, 81,664.44 and 21,151.99 is: 31,735.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,430.84 : 81,664.44 = 21,151.99 : x
  2. Step 2: Convert to fraction form
    54,430.84/81,664.44 = 21,151.99/x
  3. Step 3: Cross multiply
    54,430.84x = 81,664.44 × 21,151.99
  4. Step 4: Simplify right side
    54,430.84x = 1,727,365,418.24
  5. Step 5: Solve for x
    x = 1,727,365,418.24/54,430.84
  6. Step 6: Final answer
    x = 31,735.05

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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.