Home / 55,079.26-76,016.26-31,213.62

Finding the Fourth Proportional to 55,079.26, 76,016.26 and 31,213.62

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Solution

The fourth proportional to 55,079.26, 76,016.26 and 31,213.62 is: 43,078.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,079.26 : 76,016.26 = 31,213.62 : x
  2. Step 2: Convert to fraction form
    55,079.26/76,016.26 = 31,213.62/x
  3. Step 3: Cross multiply
    55,079.26x = 76,016.26 × 31,213.62
  4. Step 4: Simplify right side
    55,079.26x = 2,372,742,273.38
  5. Step 5: Solve for x
    x = 2,372,742,273.38/55,079.26
  6. Step 6: Final answer
    x = 43,078.69

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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.