Home / 54,027.12-81,053.64-20,747.46

Finding the Fourth Proportional to 54,027.12, 81,053.64 and 20,747.46

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Solution

The fourth proportional to 54,027.12, 81,053.64 and 20,747.46 is: 31,126.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,027.12 : 81,053.64 = 20,747.46 : x
  2. Step 2: Convert to fraction form
    54,027.12/81,053.64 = 20,747.46/x
  3. Step 3: Cross multiply
    54,027.12x = 81,053.64 × 20,747.46
  4. Step 4: Simplify right side
    54,027.12x = 1,681,657,153.75
  5. Step 5: Solve for x
    x = 1,681,657,153.75/54,027.12
  6. Step 6: Final answer
    x = 31,126.17

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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.