Home / 275,359.64-412,960.07-75,686.54

Finding the Fourth Proportional to 275,359.64, 412,960.07 and 75,686.54

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Solution

The fourth proportional to 275,359.64, 412,960.07 and 75,686.54 is: 113,507.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,359.64 : 412,960.07 = 75,686.54 : x
  2. Step 2: Convert to fraction form
    275,359.64/412,960.07 = 75,686.54/x
  3. Step 3: Cross multiply
    275,359.64x = 412,960.07 × 75,686.54
  4. Step 4: Simplify right side
    275,359.64x = 31,255,516,980.87
  5. Step 5: Solve for x
    x = 31,255,516,980.87/275,359.64
  6. Step 6: Final answer
    x = 113,507.98

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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.