Home / 61,104.06-91,670.43-18,981.96

Finding the Fourth Proportional to 61,104.06, 91,670.43 and 18,981.96

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Solution

The fourth proportional to 61,104.06, 91,670.43 and 18,981.96 is: 28,477.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,104.06 : 91,670.43 = 18,981.96 : x
  2. Step 2: Convert to fraction form
    61,104.06/91,670.43 = 18,981.96/x
  3. Step 3: Cross multiply
    61,104.06x = 91,670.43 × 18,981.96
  4. Step 4: Simplify right side
    61,104.06x = 1,740,084,435.44
  5. Step 5: Solve for x
    x = 1,740,084,435.44/61,104.06
  6. Step 6: Final answer
    x = 28,477.39

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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.