Home / 79,685.55-109,962.09-43,874.64

Finding the Fourth Proportional to 79,685.55, 109,962.09 and 43,874.64

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Solution

The fourth proportional to 79,685.55, 109,962.09 and 43,874.64 is: 60,544.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,685.55 : 109,962.09 = 43,874.64 : x
  2. Step 2: Convert to fraction form
    79,685.55/109,962.09 = 43,874.64/x
  3. Step 3: Cross multiply
    79,685.55x = 109,962.09 × 43,874.64
  4. Step 4: Simplify right side
    79,685.55x = 4,824,547,112.40
  5. Step 5: Solve for x
    x = 4,824,547,112.40/79,685.55
  6. Step 6: Final answer
    x = 60,544.82

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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.