Home / 42,734.48-64,101.76-11,144.51

Finding the Fourth Proportional to 42,734.48, 64,101.76 and 11,144.51

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Solution

The fourth proportional to 42,734.48, 64,101.76 and 11,144.51 is: 16,716.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,734.48 : 64,101.76 = 11,144.51 : x
  2. Step 2: Convert to fraction form
    42,734.48/64,101.76 = 11,144.51/x
  3. Step 3: Cross multiply
    42,734.48x = 64,101.76 × 11,144.51
  4. Step 4: Simplify right side
    42,734.48x = 714,382,837.73
  5. Step 5: Solve for x
    x = 714,382,837.73/42,734.48
  6. Step 6: Final answer
    x = 16,716.78

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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.