Home / 75,268.36-112,910.10-19,864.36

Finding the Fourth Proportional to 75,268.36, 112,910.10 and 19,864.36

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Solution

The fourth proportional to 75,268.36, 112,910.10 and 19,864.36 is: 29,798.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,268.36 : 112,910.10 = 19,864.36 : x
  2. Step 2: Convert to fraction form
    75,268.36/112,910.10 = 19,864.36/x
  3. Step 3: Cross multiply
    75,268.36x = 112,910.10 × 19,864.36
  4. Step 4: Simplify right side
    75,268.36x = 2,242,886,874.04
  5. Step 5: Solve for x
    x = 2,242,886,874.04/75,268.36
  6. Step 6: Final answer
    x = 29,798.54

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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.