Home / 54,397.05-81,603.81-19,328.37

Finding the Fourth Proportional to 54,397.05, 81,603.81 and 19,328.37

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Solution

The fourth proportional to 54,397.05, 81,603.81 and 19,328.37 is: 28,995.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,397.05 : 81,603.81 = 19,328.37 : x
  2. Step 2: Convert to fraction form
    54,397.05/81,603.81 = 19,328.37/x
  3. Step 3: Cross multiply
    54,397.05x = 81,603.81 × 19,328.37
  4. Step 4: Simplify right side
    54,397.05x = 1,577,268,633.09
  5. Step 5: Solve for x
    x = 1,577,268,633.09/54,397.05
  6. Step 6: Final answer
    x = 28,995.48

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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.