Home / 79,046.04-109,080.78-45,065.47

Finding the Fourth Proportional to 79,046.04, 109,080.78 and 45,065.47

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Solution

The fourth proportional to 79,046.04, 109,080.78 and 45,065.47 is: 62,188.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,046.04 : 109,080.78 = 45,065.47 : x
  2. Step 2: Convert to fraction form
    79,046.04/109,080.78 = 45,065.47/x
  3. Step 3: Cross multiply
    79,046.04x = 109,080.78 × 45,065.47
  4. Step 4: Simplify right side
    79,046.04x = 4,915,776,743.37
  5. Step 5: Solve for x
    x = 4,915,776,743.37/79,046.04
  6. Step 6: Final answer
    x = 62,188.78

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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.