Home / 79,347.44-109,529.96-53,865.20

Finding the Fourth Proportional to 79,347.44, 109,529.96 and 53,865.20

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Solution

The fourth proportional to 79,347.44, 109,529.96 and 53,865.20 is: 74,354.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,347.44 : 109,529.96 = 53,865.20 : x
  2. Step 2: Convert to fraction form
    79,347.44/109,529.96 = 53,865.20/x
  3. Step 3: Cross multiply
    79,347.44x = 109,529.96 × 53,865.20
  4. Step 4: Simplify right side
    79,347.44x = 5,899,853,201.39
  5. Step 5: Solve for x
    x = 5,899,853,201.39/79,347.44
  6. Step 6: Final answer
    x = 74,354.68

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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.