Home / 91,917.36-126,837-51,621.96

Finding the Fourth Proportional to 91,917.36, 126,837 and 51,621.96

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Solution

The fourth proportional to 91,917.36, 126,837 and 51,621.96 is: 71,233.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,917.36 : 126,837 = 51,621.96 : x
  2. Step 2: Convert to fraction form
    91,917.36/126,837 = 51,621.96/x
  3. Step 3: Cross multiply
    91,917.36x = 126,837 × 51,621.96
  4. Step 4: Simplify right side
    91,917.36x = 6,547,574,540.52
  5. Step 5: Solve for x
    x = 6,547,574,540.52/91,917.36
  6. Step 6: Final answer
    x = 71,233.27

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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.