Home / 50,689.45-69,950.20-28,027.86

Finding the Fourth Proportional to 50,689.45, 69,950.20 and 28,027.86

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Solution

The fourth proportional to 50,689.45, 69,950.20 and 28,027.86 is: 38,677.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,689.45 : 69,950.20 = 28,027.86 : x
  2. Step 2: Convert to fraction form
    50,689.45/69,950.20 = 28,027.86/x
  3. Step 3: Cross multiply
    50,689.45x = 69,950.20 × 28,027.86
  4. Step 4: Simplify right side
    50,689.45x = 1,960,553,922.68
  5. Step 5: Solve for x
    x = 1,960,553,922.68/50,689.45
  6. Step 6: Final answer
    x = 38,677.75

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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.