Home / 79,519.28-109,736.64-43,709

Finding the Fourth Proportional to 79,519.28, 109,736.64 and 43,709

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Solution

The fourth proportional to 79,519.28, 109,736.64 and 43,709 is: 60,318.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,519.28 : 109,736.64 = 43,709 : x
  2. Step 2: Convert to fraction form
    79,519.28/109,736.64 = 43,709/x
  3. Step 3: Cross multiply
    79,519.28x = 109,736.64 × 43,709
  4. Step 4: Simplify right side
    79,519.28x = 4,796,478,797.76
  5. Step 5: Solve for x
    x = 4,796,478,797.76/79,519.28
  6. Step 6: Final answer
    x = 60,318.44

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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.