Home / 51,036.99-70,433.39-28,378.31

Finding the Fourth Proportional to 51,036.99, 70,433.39 and 28,378.31

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Solution

The fourth proportional to 51,036.99, 70,433.39 and 28,378.31 is: 39,163.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,036.99 : 70,433.39 = 28,378.31 : x
  2. Step 2: Convert to fraction form
    51,036.99/70,433.39 = 28,378.31/x
  3. Step 3: Cross multiply
    51,036.99x = 70,433.39 × 28,378.31
  4. Step 4: Simplify right side
    51,036.99x = 1,998,780,399.69
  5. Step 5: Solve for x
    x = 1,998,780,399.69/51,036.99
  6. Step 6: Final answer
    x = 39,163.37

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1.5x scale

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.