Home / 57,831.56-86,755.97-18,389.96

Finding the Fourth Proportional to 57,831.56, 86,755.97 and 18,389.96

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Solution

The fourth proportional to 57,831.56, 86,755.97 and 18,389.96 is: 27,587.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,831.56 : 86,755.97 = 18,389.96 : x
  2. Step 2: Convert to fraction form
    57,831.56/86,755.97 = 18,389.96/x
  3. Step 3: Cross multiply
    57,831.56x = 86,755.97 × 18,389.96
  4. Step 4: Simplify right side
    57,831.56x = 1,595,438,430.26
  5. Step 5: Solve for x
    x = 1,595,438,430.26/57,831.56
  6. Step 6: Final answer
    x = 27,587.68

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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.