Home / 79,669.35-109,939.43-45,676.19

Finding the Fourth Proportional to 79,669.35, 109,939.43 and 45,676.19

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Solution

The fourth proportional to 79,669.35, 109,939.43 and 45,676.19 is: 63,030.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,669.35 : 109,939.43 = 45,676.19 : x
  2. Step 2: Convert to fraction form
    79,669.35/109,939.43 = 45,676.19/x
  3. Step 3: Cross multiply
    79,669.35x = 109,939.43 × 45,676.19
  4. Step 4: Simplify right side
    79,669.35x = 5,021,613,515.09
  5. Step 5: Solve for x
    x = 5,021,613,515.09/79,669.35
  6. Step 6: Final answer
    x = 63,030.68

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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.