Home / 45,262.96-67,890.45-20,296.31

Finding the Fourth Proportional to 45,262.96, 67,890.45 and 20,296.31

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Solution

The fourth proportional to 45,262.96, 67,890.45 and 20,296.31 is: 30,442.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,262.96 : 67,890.45 = 20,296.31 : x
  2. Step 2: Convert to fraction form
    45,262.96/67,890.45 = 20,296.31/x
  3. Step 3: Cross multiply
    45,262.96x = 67,890.45 × 20,296.31
  4. Step 4: Simplify right side
    45,262.96x = 1,377,925,610.49
  5. Step 5: Solve for x
    x = 1,377,925,610.49/45,262.96
  6. Step 6: Final answer
    x = 30,442.67

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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.