Home / 79,519.69-109,739.54-45,539.18

Finding the Fourth Proportional to 79,519.69, 109,739.54 and 45,539.18

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Solution

The fourth proportional to 79,519.69, 109,739.54 and 45,539.18 is: 62,845.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,519.69 : 109,739.54 = 45,539.18 : x
  2. Step 2: Convert to fraction form
    79,519.69/109,739.54 = 45,539.18/x
  3. Step 3: Cross multiply
    79,519.69x = 109,739.54 × 45,539.18
  4. Step 4: Simplify right side
    79,519.69x = 4,997,448,116.48
  5. Step 5: Solve for x
    x = 4,997,448,116.48/79,519.69
  6. Step 6: Final answer
    x = 62,845.42

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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.