Home / 79,014.66-109,113-50,769.57

Finding the Fourth Proportional to 79,014.66, 109,113 and 50,769.57

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Solution

The fourth proportional to 79,014.66, 109,113 and 50,769.57 is: 70,108.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,014.66 : 109,113 = 50,769.57 : x
  2. Step 2: Convert to fraction form
    79,014.66/109,113 = 50,769.57/x
  3. Step 3: Cross multiply
    79,014.66x = 109,113 × 50,769.57
  4. Step 4: Simplify right side
    79,014.66x = 5,539,620,091.41
  5. Step 5: Solve for x
    x = 5,539,620,091.41/79,014.66
  6. Step 6: Final answer
    x = 70,108.76

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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.