Home / 75,137.80-103,690.38-41,146.60

Finding the Fourth Proportional to 75,137.80, 103,690.38 and 41,146.60

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Solution

The fourth proportional to 75,137.80, 103,690.38 and 41,146.60 is: 56,782.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,137.80 : 103,690.38 = 41,146.60 : x
  2. Step 2: Convert to fraction form
    75,137.80/103,690.38 = 41,146.60/x
  3. Step 3: Cross multiply
    75,137.80x = 103,690.38 × 41,146.60
  4. Step 4: Simplify right side
    75,137.80x = 4,266,506,589.71
  5. Step 5: Solve for x
    x = 4,266,506,589.71/75,137.80
  6. Step 6: Final answer
    x = 56,782.43

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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.