Home / 78,001.84-117,014.91-25,399.09

Finding the Fourth Proportional to 78,001.84, 117,014.91 and 25,399.09

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Solution

The fourth proportional to 78,001.84, 117,014.91 and 25,399.09 is: 38,102.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,001.84 : 117,014.91 = 25,399.09 : x
  2. Step 2: Convert to fraction form
    78,001.84/117,014.91 = 25,399.09/x
  3. Step 3: Cross multiply
    78,001.84x = 117,014.91 × 25,399.09
  4. Step 4: Simplify right side
    78,001.84x = 2,972,072,230.43
  5. Step 5: Solve for x
    x = 2,972,072,230.43/78,001.84
  6. Step 6: Final answer
    x = 38,102.59

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1.5x scale

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.