Home / 79,666.28-109,943.43-43,855.91

Finding the Fourth Proportional to 79,666.28, 109,943.43 and 43,855.91

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Solution

The fourth proportional to 79,666.28, 109,943.43 and 43,855.91 is: 60,523.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,666.28 : 109,943.43 = 43,855.91 : x
  2. Step 2: Convert to fraction form
    79,666.28/109,943.43 = 43,855.91/x
  3. Step 3: Cross multiply
    79,666.28x = 109,943.43 × 43,855.91
  4. Step 4: Simplify right side
    79,666.28x = 4,821,669,171.17
  5. Step 5: Solve for x
    x = 4,821,669,171.17/79,666.28
  6. Step 6: Final answer
    x = 60,523.34

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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.