Home / 51,436.45-77,135.10-18,150.31

Finding the Fourth Proportional to 51,436.45, 77,135.10 and 18,150.31

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Solution

The fourth proportional to 51,436.45, 77,135.10 and 18,150.31 is: 27,218.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,436.45 : 77,135.10 = 18,150.31 : x
  2. Step 2: Convert to fraction form
    51,436.45/77,135.10 = 18,150.31/x
  3. Step 3: Cross multiply
    51,436.45x = 77,135.10 × 18,150.31
  4. Step 4: Simplify right side
    51,436.45x = 1,400,025,976.88
  5. Step 5: Solve for x
    x = 1,400,025,976.88/51,436.45
  6. Step 6: Final answer
    x = 27,218.56

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1.5x scale

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.