Home / 54,372.58-74,999.60-39,287.38

Finding the Fourth Proportional to 54,372.58, 74,999.60 and 39,287.38

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Solution

The fourth proportional to 54,372.58, 74,999.60 and 39,287.38 is: 54,191.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,372.58 : 74,999.60 = 39,287.38 : x
  2. Step 2: Convert to fraction form
    54,372.58/74,999.60 = 39,287.38/x
  3. Step 3: Cross multiply
    54,372.58x = 74,999.60 × 39,287.38
  4. Step 4: Simplify right side
    54,372.58x = 2,946,537,785.05
  5. Step 5: Solve for x
    x = 2,946,537,785.05/54,372.58
  6. Step 6: Final answer
    x = 54,191.61

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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.