Home / 275,309.28-412,884.54-75,636.18

Finding the Fourth Proportional to 275,309.28, 412,884.54 and 75,636.18

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Solution

The fourth proportional to 275,309.28, 412,884.54 and 75,636.18 is: 113,432.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,309.28 : 412,884.54 = 75,636.18 : x
  2. Step 2: Convert to fraction form
    275,309.28/412,884.54 = 75,636.18/x
  3. Step 3: Cross multiply
    275,309.28x = 412,884.54 × 75,636.18
  4. Step 4: Simplify right side
    275,309.28x = 31,229,009,386.66
  5. Step 5: Solve for x
    x = 31,229,009,386.66/275,309.28
  6. Step 6: Final answer
    x = 113,432.46

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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.