Home / 45,579.30-68,339.27-18,917.94

Finding the Fourth Proportional to 45,579.30, 68,339.27 and 18,917.94

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Solution

The fourth proportional to 45,579.30, 68,339.27 and 18,917.94 is: 28,364.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,579.30 : 68,339.27 = 18,917.94 : x
  2. Step 2: Convert to fraction form
    45,579.30/68,339.27 = 18,917.94/x
  3. Step 3: Cross multiply
    45,579.30x = 68,339.27 × 18,917.94
  4. Step 4: Simplify right side
    45,579.30x = 1,292,838,114.91
  5. Step 5: Solve for x
    x = 1,292,838,114.91/45,579.30
  6. Step 6: Final answer
    x = 28,364.59

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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.