Home / 50,219.68-75,329.98-12,779.80

Finding the Fourth Proportional to 50,219.68, 75,329.98 and 12,779.80

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Solution

The fourth proportional to 50,219.68, 75,329.98 and 12,779.80 is: 19,169.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,219.68 : 75,329.98 = 12,779.80 : x
  2. Step 2: Convert to fraction form
    50,219.68/75,329.98 = 12,779.80/x
  3. Step 3: Cross multiply
    50,219.68x = 75,329.98 × 12,779.80
  4. Step 4: Simplify right side
    50,219.68x = 962,702,078.40
  5. Step 5: Solve for x
    x = 962,702,078.40/50,219.68
  6. Step 6: Final answer
    x = 19,169.82

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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.