Home / 40,980.98-61,450.32-18,775.33

Finding the Fourth Proportional to 40,980.98, 61,450.32 and 18,775.33

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Solution

The fourth proportional to 40,980.98, 61,450.32 and 18,775.33 is: 28,153.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,980.98 : 61,450.32 = 18,775.33 : x
  2. Step 2: Convert to fraction form
    40,980.98/61,450.32 = 18,775.33/x
  3. Step 3: Cross multiply
    40,980.98x = 61,450.32 × 18,775.33
  4. Step 4: Simplify right side
    40,980.98x = 1,153,749,953.39
  5. Step 5: Solve for x
    x = 1,153,749,953.39/40,980.98
  6. Step 6: Final answer
    x = 28,153.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.