Home / 57,809.07-86,721.87-17,831.43

Finding the Fourth Proportional to 57,809.07, 86,721.87 and 17,831.43

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Solution

The fourth proportional to 57,809.07, 86,721.87 and 17,831.43 is: 26,749.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,809.07 : 86,721.87 = 17,831.43 : x
  2. Step 2: Convert to fraction form
    57,809.07/86,721.87 = 17,831.43/x
  3. Step 3: Cross multiply
    57,809.07x = 86,721.87 × 17,831.43
  4. Step 4: Simplify right side
    57,809.07x = 1,546,374,954.37
  5. Step 5: Solve for x
    x = 1,546,374,954.37/57,809.07
  6. Step 6: Final answer
    x = 26,749.69

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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.