Home / 48,537.75-66,969-28,399.58

Finding the Fourth Proportional to 48,537.75, 66,969 and 28,399.58

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Solution

The fourth proportional to 48,537.75, 66,969 and 28,399.58 is: 39,183.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,537.75 : 66,969 = 28,399.58 : x
  2. Step 2: Convert to fraction form
    48,537.75/66,969 = 28,399.58/x
  3. Step 3: Cross multiply
    48,537.75x = 66,969 × 28,399.58
  4. Step 4: Simplify right side
    48,537.75x = 1,901,891,138.18
  5. Step 5: Solve for x
    x = 1,901,891,138.18/48,537.75
  6. Step 6: Final answer
    x = 39,183.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.