Home / 61,111.65-91,618.14-21,647.24

Finding the Fourth Proportional to 61,111.65, 91,618.14 and 21,647.24

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Solution

The fourth proportional to 61,111.65, 91,618.14 and 21,647.24 is: 32,453.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,111.65 : 91,618.14 = 21,647.24 : x
  2. Step 2: Convert to fraction form
    61,111.65/91,618.14 = 21,647.24/x
  3. Step 3: Cross multiply
    61,111.65x = 91,618.14 × 21,647.24
  4. Step 4: Simplify right side
    61,111.65x = 1,983,279,406.84
  5. Step 5: Solve for x
    x = 1,983,279,406.84/61,111.65
  6. Step 6: Final answer
    x = 32,453.38

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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.