Home / 57,886.19-86,839.61-20,467.98

Finding the Fourth Proportional to 57,886.19, 86,839.61 and 20,467.98

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Solution

The fourth proportional to 57,886.19, 86,839.61 and 20,467.98 is: 30,705.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,886.19 : 86,839.61 = 20,467.98 : x
  2. Step 2: Convert to fraction form
    57,886.19/86,839.61 = 20,467.98/x
  3. Step 3: Cross multiply
    57,886.19x = 86,839.61 × 20,467.98
  4. Step 4: Simplify right side
    57,886.19x = 1,777,431,298.35
  5. Step 5: Solve for x
    x = 1,777,431,298.35/57,886.19
  6. Step 6: Final answer
    x = 30,705.62

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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.