Home / 51,287.15-76,936.87-15,743.81

Finding the Fourth Proportional to 51,287.15, 76,936.87 and 15,743.81

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Solution

The fourth proportional to 51,287.15, 76,936.87 and 15,743.81 is: 23,617.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,287.15 : 76,936.87 = 15,743.81 : x
  2. Step 2: Convert to fraction form
    51,287.15/76,936.87 = 15,743.81/x
  3. Step 3: Cross multiply
    51,287.15x = 76,936.87 × 15,743.81
  4. Step 4: Simplify right side
    51,287.15x = 1,211,279,463.27
  5. Step 5: Solve for x
    x = 1,211,279,463.27/51,287.15
  6. Step 6: Final answer
    x = 23,617.60

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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.