Home / 54,633.42-81,889.99-21,347.28

Finding the Fourth Proportional to 54,633.42, 81,889.99 and 21,347.28

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Solution

The fourth proportional to 54,633.42, 81,889.99 and 21,347.28 is: 31,997.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,633.42 : 81,889.99 = 21,347.28 : x
  2. Step 2: Convert to fraction form
    54,633.42/81,889.99 = 21,347.28/x
  3. Step 3: Cross multiply
    54,633.42x = 81,889.99 × 21,347.28
  4. Step 4: Simplify right side
    54,633.42x = 1,748,128,492.36
  5. Step 5: Solve for x
    x = 1,748,128,492.36/54,633.42
  6. Step 6: Final answer
    x = 31,997.42

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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.