Home / 50,436.18-75,609.12-20,835.12

Finding the Fourth Proportional to 50,436.18, 75,609.12 and 20,835.12

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Solution

The fourth proportional to 50,436.18, 75,609.12 and 20,835.12 is: 31,234.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,436.18 : 75,609.12 = 20,835.12 : x
  2. Step 2: Convert to fraction form
    50,436.18/75,609.12 = 20,835.12/x
  3. Step 3: Cross multiply
    50,436.18x = 75,609.12 × 20,835.12
  4. Step 4: Simplify right side
    50,436.18x = 1,575,325,088.29
  5. Step 5: Solve for x
    x = 1,575,325,088.29/50,436.18
  6. Step 6: Final answer
    x = 31,234.03

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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.