Home / 49,980.03-68,975.46-28,758.84

Finding the Fourth Proportional to 49,980.03, 68,975.46 and 28,758.84

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Solution

The fourth proportional to 49,980.03, 68,975.46 and 28,758.84 is: 39,688.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,980.03 : 68,975.46 = 28,758.84 : x
  2. Step 2: Convert to fraction form
    49,980.03/68,975.46 = 28,758.84/x
  3. Step 3: Cross multiply
    49,980.03x = 68,975.46 × 28,758.84
  4. Step 4: Simplify right side
    49,980.03x = 1,983,654,218.07
  5. Step 5: Solve for x
    x = 1,983,654,218.07/49,980.03
  6. Step 6: Final answer
    x = 39,688.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.