Home / 79,117.23-109,181.90-43,309.51

Finding the Fourth Proportional to 79,117.23, 109,181.90 and 43,309.51

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Solution

The fourth proportional to 79,117.23, 109,181.90 and 43,309.51 is: 59,767.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,117.23 : 109,181.90 = 43,309.51 : x
  2. Step 2: Convert to fraction form
    79,117.23/109,181.90 = 43,309.51/x
  3. Step 3: Cross multiply
    79,117.23x = 109,181.90 × 43,309.51
  4. Step 4: Simplify right side
    79,117.23x = 4,728,614,589.87
  5. Step 5: Solve for x
    x = 4,728,614,589.87/79,117.23
  6. Step 6: Final answer
    x = 59,767.19

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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.