Home / 74,111.36-111,126.40-50,743.68

Finding the Fourth Proportional to 74,111.36, 111,126.40 and 50,743.68

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Solution

The fourth proportional to 74,111.36, 111,126.40 and 50,743.68 is: 76,087.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,111.36 : 111,126.40 = 50,743.68 : x
  2. Step 2: Convert to fraction form
    74,111.36/111,126.40 = 50,743.68/x
  3. Step 3: Cross multiply
    74,111.36x = 111,126.40 × 50,743.68
  4. Step 4: Simplify right side
    74,111.36x = 5,638,962,481.15
  5. Step 5: Solve for x
    x = 5,638,962,481.15/74,111.36
  6. Step 6: Final answer
    x = 76,087.69

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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.