Home / 79,054.23-109,140-52,274.43

Finding the Fourth Proportional to 79,054.23, 109,140 and 52,274.43

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Solution

The fourth proportional to 79,054.23, 109,140 and 52,274.43 is: 72,168.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,054.23 : 109,140 = 52,274.43 : x
  2. Step 2: Convert to fraction form
    79,054.23/109,140 = 52,274.43/x
  3. Step 3: Cross multiply
    79,054.23x = 109,140 × 52,274.43
  4. Step 4: Simplify right side
    79,054.23x = 5,705,231,290.20
  5. Step 5: Solve for x
    x = 5,705,231,290.20/79,054.23
  6. Step 6: Final answer
    x = 72,168.58

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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.