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Finding the Fourth Proportional to 78,954, 118,489.44 and 37,401.12

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Solution

The fourth proportional to 78,954, 118,489.44 and 37,401.12 is: 56,129.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,954 : 118,489.44 = 37,401.12 : x
  2. Step 2: Convert to fraction form
    78,954/118,489.44 = 37,401.12/x
  3. Step 3: Cross multiply
    78,954x = 118,489.44 × 37,401.12
  4. Step 4: Simplify right side
    78,954x = 4,431,637,764.17
  5. Step 5: Solve for x
    x = 4,431,637,764.17/78,954
  6. Step 6: Final answer
    x = 56,129.36

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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.