Home / 79,110.40-109,172.39-43,300.61

Finding the Fourth Proportional to 79,110.40, 109,172.39 and 43,300.61

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Solution

The fourth proportional to 79,110.40, 109,172.39 and 43,300.61 is: 59,754.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,110.40 : 109,172.39 = 43,300.61 : x
  2. Step 2: Convert to fraction form
    79,110.40/109,172.39 = 43,300.61/x
  3. Step 3: Cross multiply
    79,110.40x = 109,172.39 × 43,300.61
  4. Step 4: Simplify right side
    79,110.40x = 4,727,230,536.30
  5. Step 5: Solve for x
    x = 4,727,230,536.30/79,110.40
  6. Step 6: Final answer
    x = 59,754.86

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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.