Home / 79,103.33-109,135.46-45,087.28

Finding the Fourth Proportional to 79,103.33, 109,135.46 and 45,087.28

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Solution

The fourth proportional to 79,103.33, 109,135.46 and 45,087.28 is: 62,204.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,103.33 : 109,135.46 = 45,087.28 : x
  2. Step 2: Convert to fraction form
    79,103.33/109,135.46 = 45,087.28/x
  3. Step 3: Cross multiply
    79,103.33x = 109,135.46 × 45,087.28
  4. Step 4: Simplify right side
    79,103.33x = 4,920,621,274.80
  5. Step 5: Solve for x
    x = 4,920,621,274.80/79,103.33
  6. Step 6: Final answer
    x = 62,204.98

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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.