Home / 79,605.36-109,871.09-45,636.66

Finding the Fourth Proportional to 79,605.36, 109,871.09 and 45,636.66

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Solution

The fourth proportional to 79,605.36, 109,871.09 and 45,636.66 is: 62,987.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,605.36 : 109,871.09 = 45,636.66 : x
  2. Step 2: Convert to fraction form
    79,605.36/109,871.09 = 45,636.66/x
  3. Step 3: Cross multiply
    79,605.36x = 109,871.09 × 45,636.66
  4. Step 4: Simplify right side
    79,605.36x = 5,014,149,578.16
  5. Step 5: Solve for x
    x = 5,014,149,578.16/79,605.36
  6. Step 6: Final answer
    x = 62,987.59

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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.