Home / 79,268.55-109,390.57-43,457.79

Finding the Fourth Proportional to 79,268.55, 109,390.57 and 43,457.79

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Solution

The fourth proportional to 79,268.55, 109,390.57 and 43,457.79 is: 59,971.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,268.55 : 109,390.57 = 43,457.79 : x
  2. Step 2: Convert to fraction form
    79,268.55/109,390.57 = 43,457.79/x
  3. Step 3: Cross multiply
    79,268.55x = 109,390.57 × 43,457.79
  4. Step 4: Simplify right side
    79,268.55x = 4,753,872,419.04
  5. Step 5: Solve for x
    x = 4,753,872,419.04/79,268.55
  6. Step 6: Final answer
    x = 59,971.73

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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.