Home / 84,399.77-126,560.70-31,078.37

Finding the Fourth Proportional to 84,399.77, 126,560.70 and 31,078.37

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Solution

The fourth proportional to 84,399.77, 126,560.70 and 31,078.37 is: 46,603.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,399.77 : 126,560.70 = 31,078.37 : x
  2. Step 2: Convert to fraction form
    84,399.77/126,560.70 = 31,078.37/x
  3. Step 3: Cross multiply
    84,399.77x = 126,560.70 × 31,078.37
  4. Step 4: Simplify right side
    84,399.77x = 3,933,299,629.26
  5. Step 5: Solve for x
    x = 3,933,299,629.26/84,399.77
  6. Step 6: Final answer
    x = 46,603.21

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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.