Home / 78,030.03-116,951.49-40,040.22

Finding the Fourth Proportional to 78,030.03, 116,951.49 and 40,040.22

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Solution

The fourth proportional to 78,030.03, 116,951.49 and 40,040.22 is: 60,012.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,030.03 : 116,951.49 = 40,040.22 : x
  2. Step 2: Convert to fraction form
    78,030.03/116,951.49 = 40,040.22/x
  3. Step 3: Cross multiply
    78,030.03x = 116,951.49 × 40,040.22
  4. Step 4: Simplify right side
    78,030.03x = 4,682,763,388.93
  5. Step 5: Solve for x
    x = 4,682,763,388.93/78,030.03
  6. Step 6: Final answer
    x = 60,012.32

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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.