Home / 78,450.84-117,673.51-25,142.03

Finding the Fourth Proportional to 78,450.84, 117,673.51 and 25,142.03

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Solution

The fourth proportional to 78,450.84, 117,673.51 and 25,142.03 is: 37,712.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,450.84 : 117,673.51 = 25,142.03 : x
  2. Step 2: Convert to fraction form
    78,450.84/117,673.51 = 25,142.03/x
  3. Step 3: Cross multiply
    78,450.84x = 117,673.51 × 25,142.03
  4. Step 4: Simplify right side
    78,450.84x = 2,958,550,918.63
  5. Step 5: Solve for x
    x = 2,958,550,918.63/78,450.84
  6. Step 6: Final answer
    x = 37,712.16

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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.