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Finding the Fourth Proportional to 78,833.81, 118,268.54 and 26,245.37

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Solution

The fourth proportional to 78,833.81, 118,268.54 and 26,245.37 is: 39,373.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,833.81 : 118,268.54 = 26,245.37 : x
  2. Step 2: Convert to fraction form
    78,833.81/118,268.54 = 26,245.37/x
  3. Step 3: Cross multiply
    78,833.81x = 118,268.54 × 26,245.37
  4. Step 4: Simplify right side
    78,833.81x = 3,104,000,869.09
  5. Step 5: Solve for x
    x = 3,104,000,869.09/78,833.81
  6. Step 6: Final answer
    x = 39,373.98

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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.