Home / 40,990.17-61,485.30-11,408.07

Finding the Fourth Proportional to 40,990.17, 61,485.30 and 11,408.07

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Solution

The fourth proportional to 40,990.17, 61,485.30 and 11,408.07 is: 17,112.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,990.17 : 61,485.30 = 11,408.07 : x
  2. Step 2: Convert to fraction form
    40,990.17/61,485.30 = 11,408.07/x
  3. Step 3: Cross multiply
    40,990.17x = 61,485.30 × 11,408.07
  4. Step 4: Simplify right side
    40,990.17x = 701,428,606.37
  5. Step 5: Solve for x
    x = 701,428,606.37/40,990.17
  6. Step 6: Final answer
    x = 17,112.12

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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.