Home / 90,886.38-125,431.38-50,609.16

Finding the Fourth Proportional to 90,886.38, 125,431.38 and 50,609.16

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Solution

The fourth proportional to 90,886.38, 125,431.38 and 50,609.16 is: 69,845.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,886.38 : 125,431.38 = 50,609.16 : x
  2. Step 2: Convert to fraction form
    90,886.38/125,431.38 = 50,609.16/x
  3. Step 3: Cross multiply
    90,886.38x = 125,431.38 × 50,609.16
  4. Step 4: Simplify right side
    90,886.38x = 6,347,976,779.44
  5. Step 5: Solve for x
    x = 6,347,976,779.44/90,886.38
  6. Step 6: Final answer
    x = 69,845.19

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Double scale
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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.