Home / 78,296.36-117,459.09-35,604.81

Finding the Fourth Proportional to 78,296.36, 117,459.09 and 35,604.81

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Solution

The fourth proportional to 78,296.36, 117,459.09 and 35,604.81 is: 53,413.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,296.36 : 117,459.09 = 35,604.81 : x
  2. Step 2: Convert to fraction form
    78,296.36/117,459.09 = 35,604.81/x
  3. Step 3: Cross multiply
    78,296.36x = 117,459.09 × 35,604.81
  4. Step 4: Simplify right side
    78,296.36x = 4,182,108,582.22
  5. Step 5: Solve for x
    x = 4,182,108,582.22/78,296.36
  6. Step 6: Final answer
    x = 53,413.83

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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.