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Finding the Fourth Proportional to 86,268, 119,054.70 and 48,544.68

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Solution

The fourth proportional to 86,268, 119,054.70 and 48,544.68 is: 66,994.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,268 : 119,054.70 = 48,544.68 : x
  2. Step 2: Convert to fraction form
    86,268/119,054.70 = 48,544.68/x
  3. Step 3: Cross multiply
    86,268x = 119,054.70 × 48,544.68
  4. Step 4: Simplify right side
    86,268x = 5,779,472,314.00
  5. Step 5: Solve for x
    x = 5,779,472,314.00/86,268
  6. Step 6: Final answer
    x = 66,994.39

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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.