Home / 57,690.39-86,540.45-18,246.63

Finding the Fourth Proportional to 57,690.39, 86,540.45 and 18,246.63

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Solution

The fourth proportional to 57,690.39, 86,540.45 and 18,246.63 is: 27,371.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,690.39 : 86,540.45 = 18,246.63 : x
  2. Step 2: Convert to fraction form
    57,690.39/86,540.45 = 18,246.63/x
  3. Step 3: Cross multiply
    57,690.39x = 86,540.45 × 18,246.63
  4. Step 4: Simplify right side
    57,690.39x = 1,579,071,479.95
  5. Step 5: Solve for x
    x = 1,579,071,479.95/57,690.39
  6. Step 6: Final answer
    x = 27,371.48

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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.