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Finding the Fourth Proportional to 48,291.32, 66,641.79 and 30,409.86

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Solution

The fourth proportional to 48,291.32, 66,641.79 and 30,409.86 is: 41,965.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,291.32 : 66,641.79 = 30,409.86 : x
  2. Step 2: Convert to fraction form
    48,291.32/66,641.79 = 30,409.86/x
  3. Step 3: Cross multiply
    48,291.32x = 66,641.79 × 30,409.86
  4. Step 4: Simplify right side
    48,291.32x = 2,026,567,696.94
  5. Step 5: Solve for x
    x = 2,026,567,696.94/48,291.32
  6. Step 6: Final answer
    x = 41,965.46

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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.