Home / 51,078.87-76,550.85-39,187.21

Finding the Fourth Proportional to 51,078.87, 76,550.85 and 39,187.21

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Solution

The fourth proportional to 51,078.87, 76,550.85 and 39,187.21 is: 58,729.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,078.87 : 76,550.85 = 39,187.21 : x
  2. Step 2: Convert to fraction form
    51,078.87/76,550.85 = 39,187.21/x
  3. Step 3: Cross multiply
    51,078.87x = 76,550.85 × 39,187.21
  4. Step 4: Simplify right side
    51,078.87x = 2,999,813,753.62
  5. Step 5: Solve for x
    x = 2,999,813,753.62/51,078.87
  6. Step 6: Final answer
    x = 58,729.06

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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.