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Finding the Fourth Proportional to 86,668.86, 119,601.48 and 48,429.12

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Solution

The fourth proportional to 86,668.86, 119,601.48 and 48,429.12 is: 66,831.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,668.86 : 119,601.48 = 48,429.12 : x
  2. Step 2: Convert to fraction form
    86,668.86/119,601.48 = 48,429.12/x
  3. Step 3: Cross multiply
    86,668.86x = 119,601.48 × 48,429.12
  4. Step 4: Simplify right side
    86,668.86x = 5,792,194,427.10
  5. Step 5: Solve for x
    x = 5,792,194,427.10/86,668.86
  6. Step 6: Final answer
    x = 66,831.32

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