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Finding the Fourth Proportional to 45,339.52, 68,028 and 20,362.24

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Solution

The fourth proportional to 45,339.52, 68,028 and 20,362.24 is: 30,551.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,339.52 : 68,028 = 20,362.24 : x
  2. Step 2: Convert to fraction form
    45,339.52/68,028 = 20,362.24/x
  3. Step 3: Cross multiply
    45,339.52x = 68,028 × 20,362.24
  4. Step 4: Simplify right side
    45,339.52x = 1,385,202,462.72
  5. Step 5: Solve for x
    x = 1,385,202,462.72/45,339.52
  6. Step 6: Final answer
    x = 30,551.77

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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.