Home / 79,431.84-109,588.54-50,768.28

Finding the Fourth Proportional to 79,431.84, 109,588.54 and 50,768.28

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Solution

The fourth proportional to 79,431.84, 109,588.54 and 50,768.28 is: 70,042.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,431.84 : 109,588.54 = 50,768.28 : x
  2. Step 2: Convert to fraction form
    79,431.84/109,588.54 = 50,768.28/x
  3. Step 3: Cross multiply
    79,431.84x = 109,588.54 × 50,768.28
  4. Step 4: Simplify right side
    79,431.84x = 5,563,621,683.51
  5. Step 5: Solve for x
    x = 5,563,621,683.51/79,431.84
  6. Step 6: Final answer
    x = 70,042.71

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1.5x scale

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.