Home / 51,578.64-71,178.46-28,917.64

Finding the Fourth Proportional to 51,578.64, 71,178.46 and 28,917.64

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Solution

The fourth proportional to 51,578.64, 71,178.46 and 28,917.64 is: 39,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,578.64 : 71,178.46 = 28,917.64 : x
  2. Step 2: Convert to fraction form
    51,578.64/71,178.46 = 28,917.64/x
  3. Step 3: Cross multiply
    51,578.64x = 71,178.46 × 28,917.64
  4. Step 4: Simplify right side
    51,578.64x = 2,058,312,581.55
  5. Step 5: Solve for x
    x = 2,058,312,581.55/51,578.64
  6. Step 6: Final answer
    x = 39,906.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.