Home / 40,775.40-61,121.79-27,629.10

Finding the Fourth Proportional to 40,775.40, 61,121.79 and 27,629.10

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Solution

The fourth proportional to 40,775.40, 61,121.79 and 27,629.10 is: 41,415.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,775.40 : 61,121.79 = 27,629.10 : x
  2. Step 2: Convert to fraction form
    40,775.40/61,121.79 = 27,629.10/x
  3. Step 3: Cross multiply
    40,775.40x = 61,121.79 × 27,629.10
  4. Step 4: Simplify right side
    40,775.40x = 1,688,740,048.09
  5. Step 5: Solve for x
    x = 1,688,740,048.09/40,775.40
  6. Step 6: Final answer
    x = 41,415.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.