Home / 65,831.94-90,849.40-38,964.65

Finding the Fourth Proportional to 65,831.94, 90,849.40 and 38,964.65

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Solution

The fourth proportional to 65,831.94, 90,849.40 and 38,964.65 is: 53,771.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,831.94 : 90,849.40 = 38,964.65 : x
  2. Step 2: Convert to fraction form
    65,831.94/90,849.40 = 38,964.65/x
  3. Step 3: Cross multiply
    65,831.94x = 90,849.40 × 38,964.65
  4. Step 4: Simplify right side
    65,831.94x = 3,539,914,522.05
  5. Step 5: Solve for x
    x = 3,539,914,522.05/65,831.94
  6. Step 6: Final answer
    x = 53,771.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.