Home / 71,813.18-107,419.70-50,464.35

Finding the Fourth Proportional to 71,813.18, 107,419.70 and 50,464.35

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Solution

The fourth proportional to 71,813.18, 107,419.70 and 50,464.35 is: 75,485.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,813.18 : 107,419.70 = 50,464.35 : x
  2. Step 2: Convert to fraction form
    71,813.18/107,419.70 = 50,464.35/x
  3. Step 3: Cross multiply
    71,813.18x = 107,419.70 × 50,464.35
  4. Step 4: Simplify right side
    71,813.18x = 5,420,865,463.86
  5. Step 5: Solve for x
    x = 5,420,865,463.86/71,813.18
  6. Step 6: Final answer
    x = 75,485.66

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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.