Home / 79,455.43-109,648.53-43,646.05

Finding the Fourth Proportional to 79,455.43, 109,648.53 and 43,646.05

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Solution

The fourth proportional to 79,455.43, 109,648.53 and 43,646.05 is: 60,231.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,455.43 : 109,648.53 = 43,646.05 : x
  2. Step 2: Convert to fraction form
    79,455.43/109,648.53 = 43,646.05/x
  3. Step 3: Cross multiply
    79,455.43x = 109,648.53 × 43,646.05
  4. Step 4: Simplify right side
    79,455.43x = 4,785,725,222.81
  5. Step 5: Solve for x
    x = 4,785,725,222.81/79,455.43
  6. Step 6: Final answer
    x = 60,231.57

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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.