Home / 91,481.64-126,284.40-55,682.88

Finding the Fourth Proportional to 91,481.64, 126,284.40 and 55,682.88

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Solution

The fourth proportional to 91,481.64, 126,284.40 and 55,682.88 is: 76,866.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,481.64 : 126,284.40 = 55,682.88 : x
  2. Step 2: Convert to fraction form
    91,481.64/126,284.40 = 55,682.88/x
  3. Step 3: Cross multiply
    91,481.64x = 126,284.40 × 55,682.88
  4. Step 4: Simplify right side
    91,481.64x = 7,031,879,091.07
  5. Step 5: Solve for x
    x = 7,031,879,091.07/91,481.64
  6. Step 6: Final answer
    x = 76,866.56

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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.