Home / 76,727.04-115,090.56-43,872

Finding the Fourth Proportional to 76,727.04, 115,090.56 and 43,872

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Solution

The fourth proportional to 76,727.04, 115,090.56 and 43,872 is: 65,808

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,727.04 : 115,090.56 = 43,872 : x
  2. Step 2: Convert to fraction form
    76,727.04/115,090.56 = 43,872/x
  3. Step 3: Cross multiply
    76,727.04x = 115,090.56 × 43,872
  4. Step 4: Simplify right side
    76,727.04x = 5,049,253,048.32
  5. Step 5: Solve for x
    x = 5,049,253,048.32/76,727.04
  6. Step 6: Final answer
    x = 65,808

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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.