Home / 79,287.30-109,416.42-43,477.89

Finding the Fourth Proportional to 79,287.30, 109,416.42 and 43,477.89

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Solution

The fourth proportional to 79,287.30, 109,416.42 and 43,477.89 is: 59,999.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,287.30 : 109,416.42 = 43,477.89 : x
  2. Step 2: Convert to fraction form
    79,287.30/109,416.42 = 43,477.89/x
  3. Step 3: Cross multiply
    79,287.30x = 109,416.42 × 43,477.89
  4. Step 4: Simplify right side
    79,287.30x = 4,757,195,072.95
  5. Step 5: Solve for x
    x = 4,757,195,072.95/79,287.30
  6. Step 6: Final answer
    x = 59,999.46

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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.