Home / 74,977.73-103,469.03-40,986.23

Finding the Fourth Proportional to 74,977.73, 103,469.03 and 40,986.23

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Solution

The fourth proportional to 74,977.73, 103,469.03 and 40,986.23 is: 56,560.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,977.73 : 103,469.03 = 40,986.23 : x
  2. Step 2: Convert to fraction form
    74,977.73/103,469.03 = 40,986.23/x
  3. Step 3: Cross multiply
    74,977.73x = 103,469.03 × 40,986.23
  4. Step 4: Simplify right side
    74,977.73x = 4,240,805,356.80
  5. Step 5: Solve for x
    x = 4,240,805,356.80/74,977.73
  6. Step 6: Final answer
    x = 56,560.87

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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.