Home / 79,286.40-109,416.28-43,476.32

Finding the Fourth Proportional to 79,286.40, 109,416.28 and 43,476.32

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Solution

The fourth proportional to 79,286.40, 109,416.28 and 43,476.32 is: 59,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,286.40 : 109,416.28 = 43,476.32 : x
  2. Step 2: Convert to fraction form
    79,286.40/109,416.28 = 43,476.32/x
  3. Step 3: Cross multiply
    79,286.40x = 109,416.28 × 43,476.32
  4. Step 4: Simplify right side
    79,286.40x = 4,757,017,202.49
  5. Step 5: Solve for x
    x = 4,757,017,202.49/79,286.40
  6. Step 6: Final answer
    x = 59,997.90

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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.