Home / 79,621.81-109,881.02-43,813.33

Finding the Fourth Proportional to 79,621.81, 109,881.02 and 43,813.33

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Solution

The fourth proportional to 79,621.81, 109,881.02 and 43,813.33 is: 60,464.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,621.81 : 109,881.02 = 43,813.33 : x
  2. Step 2: Convert to fraction form
    79,621.81/109,881.02 = 43,813.33/x
  3. Step 3: Cross multiply
    79,621.81x = 109,881.02 × 43,813.33
  4. Step 4: Simplify right side
    79,621.81x = 4,814,253,224.83
  5. Step 5: Solve for x
    x = 4,814,253,224.83/79,621.81
  6. Step 6: Final answer
    x = 60,464.00

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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.