Home / 74,699.50-103,082.31-40,707.26

Finding the Fourth Proportional to 74,699.50, 103,082.31 and 40,707.26

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Solution

The fourth proportional to 74,699.50, 103,082.31 and 40,707.26 is: 56,174.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,699.50 : 103,082.31 = 40,707.26 : x
  2. Step 2: Convert to fraction form
    74,699.50/103,082.31 = 40,707.26/x
  3. Step 3: Cross multiply
    74,699.50x = 103,082.31 × 40,707.26
  4. Step 4: Simplify right side
    74,699.50x = 4,196,198,804.93
  5. Step 5: Solve for x
    x = 4,196,198,804.93/74,699.50
  6. Step 6: Final answer
    x = 56,174.39

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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.