Home / 71,840.07-99,135.36-40,003.29

Finding the Fourth Proportional to 71,840.07, 99,135.36 and 40,003.29

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Solution

The fourth proportional to 71,840.07, 99,135.36 and 40,003.29 is: 55,202.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,840.07 : 99,135.36 = 40,003.29 : x
  2. Step 2: Convert to fraction form
    71,840.07/99,135.36 = 40,003.29/x
  3. Step 3: Cross multiply
    71,840.07x = 99,135.36 × 40,003.29
  4. Step 4: Simplify right side
    71,840.07x = 3,965,740,555.33
  5. Step 5: Solve for x
    x = 3,965,740,555.33/71,840.07
  6. Step 6: Final answer
    x = 55,202.35

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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.