Home / 78,434.36-117,669.99-25,843.84

Finding the Fourth Proportional to 78,434.36, 117,669.99 and 25,843.84

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Solution

The fourth proportional to 78,434.36, 117,669.99 and 25,843.84 is: 38,771.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,434.36 : 117,669.99 = 25,843.84 : x
  2. Step 2: Convert to fraction form
    78,434.36/117,669.99 = 25,843.84/x
  3. Step 3: Cross multiply
    78,434.36x = 117,669.99 × 25,843.84
  4. Step 4: Simplify right side
    78,434.36x = 3,041,044,394.36
  5. Step 5: Solve for x
    x = 3,041,044,394.36/78,434.36
  6. Step 6: Final answer
    x = 38,771.84

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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.