Home / 50,135.75-69,178.55-28,615.67

Finding the Fourth Proportional to 50,135.75, 69,178.55 and 28,615.67

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Solution

The fourth proportional to 50,135.75, 69,178.55 and 28,615.67 is: 39,484.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,135.75 : 69,178.55 = 28,615.67 : x
  2. Step 2: Convert to fraction form
    50,135.75/69,178.55 = 28,615.67/x
  3. Step 3: Cross multiply
    50,135.75x = 69,178.55 × 28,615.67
  4. Step 4: Simplify right side
    50,135.75x = 1,979,590,557.88
  5. Step 5: Solve for x
    x = 1,979,590,557.88/50,135.75
  6. Step 6: Final answer
    x = 39,484.61

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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.