Home / 80,958.10-121,426.21-21,797.32

Finding the Fourth Proportional to 80,958.10, 121,426.21 and 21,797.32

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Solution

The fourth proportional to 80,958.10, 121,426.21 and 21,797.32 is: 32,693.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,958.10 : 121,426.21 = 21,797.32 : x
  2. Step 2: Convert to fraction form
    80,958.10/121,426.21 = 21,797.32/x
  3. Step 3: Cross multiply
    80,958.10x = 121,426.21 × 21,797.32
  4. Step 4: Simplify right side
    80,958.10x = 2,646,765,955.76
  5. Step 5: Solve for x
    x = 2,646,765,955.76/80,958.10
  6. Step 6: Final answer
    x = 32,693.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.