Home / 74,761.57-103,173.44-40,771.91

Finding the Fourth Proportional to 74,761.57, 103,173.44 and 40,771.91

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Solution

The fourth proportional to 74,761.57, 103,173.44 and 40,771.91 is: 56,266.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,761.57 : 103,173.44 = 40,771.91 : x
  2. Step 2: Convert to fraction form
    74,761.57/103,173.44 = 40,771.91/x
  3. Step 3: Cross multiply
    74,761.57x = 103,173.44 × 40,771.91
  4. Step 4: Simplify right side
    74,761.57x = 4,206,578,210.07
  5. Step 5: Solve for x
    x = 4,206,578,210.07/74,761.57
  6. Step 6: Final answer
    x = 56,266.58

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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.