Home / 74,758.19-103,165.49-40,766.57

Finding the Fourth Proportional to 74,758.19, 103,165.49 and 40,766.57

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Solution

The fourth proportional to 74,758.19, 103,165.49 and 40,766.57 is: 56,257.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,758.19 : 103,165.49 = 40,766.57 : x
  2. Step 2: Convert to fraction form
    74,758.19/103,165.49 = 40,766.57/x
  3. Step 3: Cross multiply
    74,758.19x = 103,165.49 × 40,766.57
  4. Step 4: Simplify right side
    74,758.19x = 4,205,702,965.84
  5. Step 5: Solve for x
    x = 4,205,702,965.84/74,758.19
  6. Step 6: Final answer
    x = 56,257.42

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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.