Home / 49,865.04-68,812.18-28,357.12

Finding the Fourth Proportional to 49,865.04, 68,812.18 and 28,357.12

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Solution

The fourth proportional to 49,865.04, 68,812.18 and 28,357.12 is: 39,131.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,865.04 : 68,812.18 = 28,357.12 : x
  2. Step 2: Convert to fraction form
    49,865.04/68,812.18 = 28,357.12/x
  3. Step 3: Cross multiply
    49,865.04x = 68,812.18 × 28,357.12
  4. Step 4: Simplify right side
    49,865.04x = 1,951,315,468.32
  5. Step 5: Solve for x
    x = 1,951,315,468.32/49,865.04
  6. Step 6: Final answer
    x = 39,131.93

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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.