Home / 51,831.40-77,756.70-16,772.20

Finding the Fourth Proportional to 51,831.40, 77,756.70 and 16,772.20

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Solution

The fourth proportional to 51,831.40, 77,756.70 and 16,772.20 is: 25,161.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,831.40 : 77,756.70 = 16,772.20 : x
  2. Step 2: Convert to fraction form
    51,831.40/77,756.70 = 16,772.20/x
  3. Step 3: Cross multiply
    51,831.40x = 77,756.70 × 16,772.20
  4. Step 4: Simplify right side
    51,831.40x = 1,304,150,923.74
  5. Step 5: Solve for x
    x = 1,304,150,923.74/51,831.40
  6. Step 6: Final answer
    x = 25,161.41

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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.