Home / 74,008.31-102,131.24-40,016.55

Finding the Fourth Proportional to 74,008.31, 102,131.24 and 40,016.55

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Solution

The fourth proportional to 74,008.31, 102,131.24 and 40,016.55 is: 55,222.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,008.31 : 102,131.24 = 40,016.55 : x
  2. Step 2: Convert to fraction form
    74,008.31/102,131.24 = 40,016.55/x
  3. Step 3: Cross multiply
    74,008.31x = 102,131.24 × 40,016.55
  4. Step 4: Simplify right side
    74,008.31x = 4,086,939,972.06
  5. Step 5: Solve for x
    x = 4,086,939,972.06/74,008.31
  6. Step 6: Final answer
    x = 55,222.72

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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.