Home / 91,661.15-126,491.25-51,374.86

Finding the Fourth Proportional to 91,661.15, 126,491.25 and 51,374.86

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Solution

The fourth proportional to 91,661.15, 126,491.25 and 51,374.86 is: 70,896.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,661.15 : 126,491.25 = 51,374.86 : x
  2. Step 2: Convert to fraction form
    91,661.15/126,491.25 = 51,374.86/x
  3. Step 3: Cross multiply
    91,661.15x = 126,491.25 × 51,374.86
  4. Step 4: Simplify right side
    91,661.15x = 6,498,470,136.40
  5. Step 5: Solve for x
    x = 6,498,470,136.40/91,661.15
  6. Step 6: Final answer
    x = 70,896.67

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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.