Home / 49,383.68-74,075.31-19,780.34

Finding the Fourth Proportional to 49,383.68, 74,075.31 and 19,780.34

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Solution

The fourth proportional to 49,383.68, 74,075.31 and 19,780.34 is: 29,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,383.68 : 74,075.31 = 19,780.34 : x
  2. Step 2: Convert to fraction form
    49,383.68/74,075.31 = 19,780.34/x
  3. Step 3: Cross multiply
    49,383.68x = 74,075.31 × 19,780.34
  4. Step 4: Simplify right side
    49,383.68x = 1,465,234,447.03
  5. Step 5: Solve for x
    x = 1,465,234,447.03/49,383.68
  6. Step 6: Final answer
    x = 29,670.42

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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.