Home / 78,968.24-108,975.99-43,158.51

Finding the Fourth Proportional to 78,968.24, 108,975.99 and 43,158.51

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Solution

The fourth proportional to 78,968.24, 108,975.99 and 43,158.51 is: 59,558.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,968.24 : 108,975.99 = 43,158.51 : x
  2. Step 2: Convert to fraction form
    78,968.24/108,975.99 = 43,158.51/x
  3. Step 3: Cross multiply
    78,968.24x = 108,975.99 × 43,158.51
  4. Step 4: Simplify right side
    78,968.24x = 4,703,241,150.35
  5. Step 5: Solve for x
    x = 4,703,241,150.35/78,968.24
  6. Step 6: Final answer
    x = 59,558.64

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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.