Home / 74,087.79-102,240.36-40,095.56

Finding the Fourth Proportional to 74,087.79, 102,240.36 and 40,095.56

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Solution

The fourth proportional to 74,087.79, 102,240.36 and 40,095.56 is: 55,331.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,087.79 : 102,240.36 = 40,095.56 : x
  2. Step 2: Convert to fraction form
    74,087.79/102,240.36 = 40,095.56/x
  3. Step 3: Cross multiply
    74,087.79x = 102,240.36 × 40,095.56
  4. Step 4: Simplify right side
    74,087.79x = 4,099,383,977.60
  5. Step 5: Solve for x
    x = 4,099,383,977.60/74,087.79
  6. Step 6: Final answer
    x = 55,331.44

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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.