Home / 43,140.36-64,700.82-16,831.56

Finding the Fourth Proportional to 43,140.36, 64,700.82 and 16,831.56

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Solution

The fourth proportional to 43,140.36, 64,700.82 and 16,831.56 is: 25,243.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,140.36 : 64,700.82 = 16,831.56 : x
  2. Step 2: Convert to fraction form
    43,140.36/64,700.82 = 16,831.56/x
  3. Step 3: Cross multiply
    43,140.36x = 64,700.82 × 16,831.56
  4. Step 4: Simplify right side
    43,140.36x = 1,089,015,733.88
  5. Step 5: Solve for x
    x = 1,089,015,733.88/43,140.36
  6. Step 6: Final answer
    x = 25,243.55

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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.