Home / 64,450.76-96,672.24-38,321.78

Finding the Fourth Proportional to 64,450.76, 96,672.24 and 38,321.78

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Solution

The fourth proportional to 64,450.76, 96,672.24 and 38,321.78 is: 57,480.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,450.76 : 96,672.24 = 38,321.78 : x
  2. Step 2: Convert to fraction form
    64,450.76/96,672.24 = 38,321.78/x
  3. Step 3: Cross multiply
    64,450.76x = 96,672.24 × 38,321.78
  4. Step 4: Simplify right side
    64,450.76x = 3,704,652,313.39
  5. Step 5: Solve for x
    x = 3,704,652,313.39/64,450.76
  6. Step 6: Final answer
    x = 57,480.35

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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.