Home / 91,515.33-126,293.80-51,228.86

Finding the Fourth Proportional to 91,515.33, 126,293.80 and 51,228.86

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Solution

The fourth proportional to 91,515.33, 126,293.80 and 51,228.86 is: 70,697.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,515.33 : 126,293.80 = 51,228.86 : x
  2. Step 2: Convert to fraction form
    91,515.33/126,293.80 = 51,228.86/x
  3. Step 3: Cross multiply
    91,515.33x = 126,293.80 × 51,228.86
  4. Step 4: Simplify right side
    91,515.33x = 6,469,886,511.45
  5. Step 5: Solve for x
    x = 6,469,886,511.45/91,515.33
  6. Step 6: Final answer
    x = 70,697.30

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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.