Home / 71,736.13-98,993.49-39,904.35

Finding the Fourth Proportional to 71,736.13, 98,993.49 and 39,904.35

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Solution

The fourth proportional to 71,736.13, 98,993.49 and 39,904.35 is: 55,066.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,736.13 : 98,993.49 = 39,904.35 : x
  2. Step 2: Convert to fraction form
    71,736.13/98,993.49 = 39,904.35/x
  3. Step 3: Cross multiply
    71,736.13x = 98,993.49 × 39,904.35
  4. Step 4: Simplify right side
    71,736.13x = 3,950,270,576.28
  5. Step 5: Solve for x
    x = 3,950,270,576.28/71,736.13
  6. Step 6: Final answer
    x = 55,066.68

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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.