Home / 79,186.83-109,279.59-45,194.64

Finding the Fourth Proportional to 79,186.83, 109,279.59 and 45,194.64

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Solution

The fourth proportional to 79,186.83, 109,279.59 and 45,194.64 is: 62,369.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,186.83 : 109,279.59 = 45,194.64 : x
  2. Step 2: Convert to fraction form
    79,186.83/109,279.59 = 45,194.64/x
  3. Step 3: Cross multiply
    79,186.83x = 109,279.59 × 45,194.64
  4. Step 4: Simplify right side
    79,186.83x = 4,938,851,729.40
  5. Step 5: Solve for x
    x = 4,938,851,729.40/79,186.83
  6. Step 6: Final answer
    x = 62,369.61

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1.5x scale

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.