Home / 71,844.60-99,145.44-40,016.28

Finding the Fourth Proportional to 71,844.60, 99,145.44 and 40,016.28

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Solution

The fourth proportional to 71,844.60, 99,145.44 and 40,016.28 is: 55,222.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,844.60 : 99,145.44 = 40,016.28 : x
  2. Step 2: Convert to fraction form
    71,844.60/99,145.44 = 40,016.28/x
  3. Step 3: Cross multiply
    71,844.60x = 99,145.44 × 40,016.28
  4. Step 4: Simplify right side
    71,844.60x = 3,967,431,687.76
  5. Step 5: Solve for x
    x = 3,967,431,687.76/71,844.60
  6. Step 6: Final answer
    x = 55,222.41

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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.