Home / 57,689.64-86,539.32-18,245.88

Finding the Fourth Proportional to 57,689.64, 86,539.32 and 18,245.88

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Solution

The fourth proportional to 57,689.64, 86,539.32 and 18,245.88 is: 27,370.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,689.64 : 86,539.32 = 18,245.88 : x
  2. Step 2: Convert to fraction form
    57,689.64/86,539.32 = 18,245.88/x
  3. Step 3: Cross multiply
    57,689.64x = 86,539.32 × 18,245.88
  4. Step 4: Simplify right side
    57,689.64x = 1,578,986,048.00
  5. Step 5: Solve for x
    x = 1,578,986,048.00/57,689.64
  6. Step 6: Final answer
    x = 27,370.36

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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.