Home / 50,485.08-75,748.50-20,908.92

Finding the Fourth Proportional to 50,485.08, 75,748.50 and 20,908.92

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Solution

The fourth proportional to 50,485.08, 75,748.50 and 20,908.92 is: 31,372.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,485.08 : 75,748.50 = 20,908.92 : x
  2. Step 2: Convert to fraction form
    50,485.08/75,748.50 = 20,908.92/x
  3. Step 3: Cross multiply
    50,485.08x = 75,748.50 × 20,908.92
  4. Step 4: Simplify right side
    50,485.08x = 1,583,819,326.62
  5. Step 5: Solve for x
    x = 1,583,819,326.62/50,485.08
  6. Step 6: Final answer
    x = 31,372.03

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1.5x scale

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.