Home / 45,180.52-67,762.46-18,878.20

Finding the Fourth Proportional to 45,180.52, 67,762.46 and 18,878.20

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Solution

The fourth proportional to 45,180.52, 67,762.46 and 18,878.20 is: 28,313.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,180.52 : 67,762.46 = 18,878.20 : x
  2. Step 2: Convert to fraction form
    45,180.52/67,762.46 = 18,878.20/x
  3. Step 3: Cross multiply
    45,180.52x = 67,762.46 × 18,878.20
  4. Step 4: Simplify right side
    45,180.52x = 1,279,233,272.37
  5. Step 5: Solve for x
    x = 1,279,233,272.37/45,180.52
  6. Step 6: Final answer
    x = 28,313.82

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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.