Home / 45,042.86-67,571.58-18,748.64

Finding the Fourth Proportional to 45,042.86, 67,571.58 and 18,748.64

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Solution

The fourth proportional to 45,042.86, 67,571.58 and 18,748.64 is: 28,125.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,042.86 : 67,571.58 = 18,748.64 : x
  2. Step 2: Convert to fraction form
    45,042.86/67,571.58 = 18,748.64/x
  3. Step 3: Cross multiply
    45,042.86x = 67,571.58 × 18,748.64
  4. Step 4: Simplify right side
    45,042.86x = 1,266,875,227.65
  5. Step 5: Solve for x
    x = 1,266,875,227.65/45,042.86
  6. Step 6: Final answer
    x = 28,125.99

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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.