Home / 54,415.36-81,603.84-19,348.48

Finding the Fourth Proportional to 54,415.36, 81,603.84 and 19,348.48

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Solution

The fourth proportional to 54,415.36, 81,603.84 and 19,348.48 is: 29,015.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,415.36 : 81,603.84 = 19,348.48 : x
  2. Step 2: Convert to fraction form
    54,415.36/81,603.84 = 19,348.48/x
  3. Step 3: Cross multiply
    54,415.36x = 81,603.84 × 19,348.48
  4. Step 4: Simplify right side
    54,415.36x = 1,578,910,266.16
  5. Step 5: Solve for x
    x = 1,578,910,266.16/54,415.36
  6. Step 6: Final answer
    x = 29,015.89

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1.5x scale

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.