Home / 50,756.94-76,129.93-13,320.74

Finding the Fourth Proportional to 50,756.94, 76,129.93 and 13,320.74

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Solution

The fourth proportional to 50,756.94, 76,129.93 and 13,320.74 is: 19,979.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,756.94 : 76,129.93 = 13,320.74 : x
  2. Step 2: Convert to fraction form
    50,756.94/76,129.93 = 13,320.74/x
  3. Step 3: Cross multiply
    50,756.94x = 76,129.93 × 13,320.74
  4. Step 4: Simplify right side
    50,756.94x = 1,014,107,003.75
  5. Step 5: Solve for x
    x = 1,014,107,003.75/50,756.94
  6. Step 6: Final answer
    x = 19,979.67

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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.