Home / 50,486.45-69,660.06-28,974.87

Finding the Fourth Proportional to 50,486.45, 69,660.06 and 28,974.87

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Solution

The fourth proportional to 50,486.45, 69,660.06 and 28,974.87 is: 39,978.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,486.45 : 69,660.06 = 28,974.87 : x
  2. Step 2: Convert to fraction form
    50,486.45/69,660.06 = 28,974.87/x
  3. Step 3: Cross multiply
    50,486.45x = 69,660.06 × 28,974.87
  4. Step 4: Simplify right side
    50,486.45x = 2,018,391,182.69
  5. Step 5: Solve for x
    x = 2,018,391,182.69/50,486.45
  6. Step 6: Final answer
    x = 39,978.87

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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.