Home / 79,243.84-118,940-41,831.68

Finding the Fourth Proportional to 79,243.84, 118,940 and 41,831.68

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Solution

The fourth proportional to 79,243.84, 118,940 and 41,831.68 is: 62,786.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,243.84 : 118,940 = 41,831.68 : x
  2. Step 2: Convert to fraction form
    79,243.84/118,940 = 41,831.68/x
  3. Step 3: Cross multiply
    79,243.84x = 118,940 × 41,831.68
  4. Step 4: Simplify right side
    79,243.84x = 4,975,460,019.20
  5. Step 5: Solve for x
    x = 4,975,460,019.20/79,243.84
  6. Step 6: Final answer
    x = 62,786.71

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1.5x scale

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.