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Finding the Fourth Proportional to 78,936, 118,462.44 and 37,383.12

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Solution

The fourth proportional to 78,936, 118,462.44 and 37,383.12 is: 56,102.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,936 : 118,462.44 = 37,383.12 : x
  2. Step 2: Convert to fraction form
    78,936/118,462.44 = 37,383.12/x
  3. Step 3: Cross multiply
    78,936x = 118,462.44 × 37,383.12
  4. Step 4: Simplify right side
    78,936x = 4,428,495,610.01
  5. Step 5: Solve for x
    x = 4,428,495,610.01/78,936
  6. Step 6: Final answer
    x = 56,102.36

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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.