Home / 71,825.01-99,121.59-39,993.91

Finding the Fourth Proportional to 71,825.01, 99,121.59 and 39,993.91

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Solution

The fourth proportional to 71,825.01, 99,121.59 and 39,993.91 is: 55,193.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,825.01 : 99,121.59 = 39,993.91 : x
  2. Step 2: Convert to fraction form
    71,825.01/99,121.59 = 39,993.91/x
  3. Step 3: Cross multiply
    71,825.01x = 99,121.59 × 39,993.91
  4. Step 4: Simplify right side
    71,825.01x = 3,964,259,729.23
  5. Step 5: Solve for x
    x = 3,964,259,729.23/71,825.01
  6. Step 6: Final answer
    x = 55,193.31

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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.