Home / 74,414.45-102,688.97-40,422.24

Finding the Fourth Proportional to 74,414.45, 102,688.97 and 40,422.24

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Solution

The fourth proportional to 74,414.45, 102,688.97 and 40,422.24 is: 55,781.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,414.45 : 102,688.97 = 40,422.24 : x
  2. Step 2: Convert to fraction form
    74,414.45/102,688.97 = 40,422.24/x
  3. Step 3: Cross multiply
    74,414.45x = 102,688.97 × 40,422.24
  4. Step 4: Simplify right side
    74,414.45x = 4,150,917,988.58
  5. Step 5: Solve for x
    x = 4,150,917,988.58/74,414.45
  6. Step 6: Final answer
    x = 55,781.07

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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.