Home / 45,151.08-67,743.90-21,775.56

Finding the Fourth Proportional to 45,151.08, 67,743.90 and 21,775.56

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Solution

The fourth proportional to 45,151.08, 67,743.90 and 21,775.56 is: 32,671.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,151.08 : 67,743.90 = 21,775.56 : x
  2. Step 2: Convert to fraction form
    45,151.08/67,743.90 = 21,775.56/x
  3. Step 3: Cross multiply
    45,151.08x = 67,743.90 × 21,775.56
  4. Step 4: Simplify right side
    45,151.08x = 1,475,161,359.08
  5. Step 5: Solve for x
    x = 1,475,161,359.08/45,151.08
  6. Step 6: Final answer
    x = 32,671.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.