Home / 45,709.80-68,566.92-16,128

Finding the Fourth Proportional to 45,709.80, 68,566.92 and 16,128

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Solution

The fourth proportional to 45,709.80, 68,566.92 and 16,128 is: 24,192.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,709.80 : 68,566.92 = 16,128 : x
  2. Step 2: Convert to fraction form
    45,709.80/68,566.92 = 16,128/x
  3. Step 3: Cross multiply
    45,709.80x = 68,566.92 × 16,128
  4. Step 4: Simplify right side
    45,709.80x = 1,105,847,285.76
  5. Step 5: Solve for x
    x = 1,105,847,285.76/45,709.80
  6. Step 6: Final answer
    x = 24,192.78

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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.