Home / 51,831.72-77,726.66-20,237.27

Finding the Fourth Proportional to 51,831.72, 77,726.66 and 20,237.27

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Solution

The fourth proportional to 51,831.72, 77,726.66 and 20,237.27 is: 30,347.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,831.72 : 77,726.66 = 20,237.27 : x
  2. Step 2: Convert to fraction form
    51,831.72/77,726.66 = 20,237.27/x
  3. Step 3: Cross multiply
    51,831.72x = 77,726.66 × 20,237.27
  4. Step 4: Simplify right side
    51,831.72x = 1,572,974,914.80
  5. Step 5: Solve for x
    x = 1,572,974,914.80/51,831.72
  6. Step 6: Final answer
    x = 30,347.73

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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.