Home / 52,881.30-79,286.47-20,831.07

Finding the Fourth Proportional to 52,881.30, 79,286.47 and 20,831.07

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Solution

The fourth proportional to 52,881.30, 79,286.47 and 20,831.07 is: 31,232.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,881.30 : 79,286.47 = 20,831.07 : x
  2. Step 2: Convert to fraction form
    52,881.30/79,286.47 = 20,831.07/x
  3. Step 3: Cross multiply
    52,881.30x = 79,286.47 × 20,831.07
  4. Step 4: Simplify right side
    52,881.30x = 1,651,621,954.55
  5. Step 5: Solve for x
    x = 1,651,621,954.55/52,881.30
  6. Step 6: Final answer
    x = 31,232.63

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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.