Home / 49,218.80-73,828.20-28,137.20

Finding the Fourth Proportional to 49,218.80, 73,828.20 and 28,137.20

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Solution

The fourth proportional to 49,218.80, 73,828.20 and 28,137.20 is: 42,205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,218.80 : 73,828.20 = 28,137.20 : x
  2. Step 2: Convert to fraction form
    49,218.80/73,828.20 = 28,137.20/x
  3. Step 3: Cross multiply
    49,218.80x = 73,828.20 × 28,137.20
  4. Step 4: Simplify right side
    49,218.80x = 2,077,318,829.04
  5. Step 5: Solve for x
    x = 2,077,318,829.04/49,218.80
  6. Step 6: Final answer
    x = 42,205.80

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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.