Home / 52,786.32-72,845.12-28,912.96

Finding the Fourth Proportional to 52,786.32, 72,845.12 and 28,912.96

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Solution

The fourth proportional to 52,786.32, 72,845.12 and 28,912.96 is: 39,899.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,786.32 : 72,845.12 = 28,912.96 : x
  2. Step 2: Convert to fraction form
    52,786.32/72,845.12 = 28,912.96/x
  3. Step 3: Cross multiply
    52,786.32x = 72,845.12 × 28,912.96
  4. Step 4: Simplify right side
    52,786.32x = 2,106,168,040.76
  5. Step 5: Solve for x
    x = 2,106,168,040.76/52,786.32
  6. Step 6: Final answer
    x = 39,899.88

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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.