Home / 49,831.65-74,749.28-12,391.92

Finding the Fourth Proportional to 49,831.65, 74,749.28 and 12,391.92

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Solution

The fourth proportional to 49,831.65, 74,749.28 and 12,391.92 is: 18,588.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,831.65 : 74,749.28 = 12,391.92 : x
  2. Step 2: Convert to fraction form
    49,831.65/74,749.28 = 12,391.92/x
  3. Step 3: Cross multiply
    49,831.65x = 74,749.28 × 12,391.92
  4. Step 4: Simplify right side
    49,831.65x = 926,287,035.86
  5. Step 5: Solve for x
    x = 926,287,035.86/49,831.65
  6. Step 6: Final answer
    x = 18,588.33

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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.