Home / 78,297.36-117,460.59-35,605.81

Finding the Fourth Proportional to 78,297.36, 117,460.59 and 35,605.81

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Solution

The fourth proportional to 78,297.36, 117,460.59 and 35,605.81 is: 53,415.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,297.36 : 117,460.59 = 35,605.81 : x
  2. Step 2: Convert to fraction form
    78,297.36/117,460.59 = 35,605.81/x
  3. Step 3: Cross multiply
    78,297.36x = 117,460.59 × 35,605.81
  4. Step 4: Simplify right side
    78,297.36x = 4,182,279,450.03
  5. Step 5: Solve for x
    x = 4,182,279,450.03/78,297.36
  6. Step 6: Final answer
    x = 53,415.33

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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.