Home / 57,577.15-86,390.82-20,164.06

Finding the Fourth Proportional to 57,577.15, 86,390.82 and 20,164.06

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Solution

The fourth proportional to 57,577.15, 86,390.82 and 20,164.06 is: 30,254.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,577.15 : 86,390.82 = 20,164.06 : x
  2. Step 2: Convert to fraction form
    57,577.15/86,390.82 = 20,164.06/x
  3. Step 3: Cross multiply
    57,577.15x = 86,390.82 × 20,164.06
  4. Step 4: Simplify right side
    57,577.15x = 1,741,989,461.95
  5. Step 5: Solve for x
    x = 1,741,989,461.95/57,577.15
  6. Step 6: Final answer
    x = 30,254.88

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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.