Home / 79,214.06-109,315.41-43,405.43

Finding the Fourth Proportional to 79,214.06, 109,315.41 and 43,405.43

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Solution

The fourth proportional to 79,214.06, 109,315.41 and 43,405.43 is: 59,899.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,214.06 : 109,315.41 = 43,405.43 : x
  2. Step 2: Convert to fraction form
    79,214.06/109,315.41 = 43,405.43/x
  3. Step 3: Cross multiply
    79,214.06x = 109,315.41 × 43,405.43
  4. Step 4: Simplify right side
    79,214.06x = 4,744,882,649.96
  5. Step 5: Solve for x
    x = 4,744,882,649.96/79,214.06
  6. Step 6: Final answer
    x = 59,899.50

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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.