Home / 71,131.36-98,163.26-39,302.28

Finding the Fourth Proportional to 71,131.36, 98,163.26 and 39,302.28

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Solution

The fourth proportional to 71,131.36, 98,163.26 and 39,302.28 is: 54,238.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,131.36 : 98,163.26 = 39,302.28 : x
  2. Step 2: Convert to fraction form
    71,131.36/98,163.26 = 39,302.28/x
  3. Step 3: Cross multiply
    71,131.36x = 98,163.26 × 39,302.28
  4. Step 4: Simplify right side
    71,131.36x = 3,858,039,930.23
  5. Step 5: Solve for x
    x = 3,858,039,930.23/71,131.36
  6. Step 6: Final answer
    x = 54,238.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.