Home / 49,796.62-74,667.36-19,780.45

Finding the Fourth Proportional to 49,796.62, 74,667.36 and 19,780.45

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Solution

The fourth proportional to 49,796.62, 74,667.36 and 19,780.45 is: 29,659.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,796.62 : 74,667.36 = 19,780.45 : x
  2. Step 2: Convert to fraction form
    49,796.62/74,667.36 = 19,780.45/x
  3. Step 3: Cross multiply
    49,796.62x = 74,667.36 × 19,780.45
  4. Step 4: Simplify right side
    49,796.62x = 1,476,953,981.11
  5. Step 5: Solve for x
    x = 1,476,953,981.11/49,796.62
  6. Step 6: Final answer
    x = 29,659.72

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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.