Home / 57,425.41-86,138.12-17,985.61

Finding the Fourth Proportional to 57,425.41, 86,138.12 and 17,985.61

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Solution

The fourth proportional to 57,425.41, 86,138.12 and 17,985.61 is: 26,978.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,425.41 : 86,138.12 = 17,985.61 : x
  2. Step 2: Convert to fraction form
    57,425.41/86,138.12 = 17,985.61/x
  3. Step 3: Cross multiply
    57,425.41x = 86,138.12 × 17,985.61
  4. Step 4: Simplify right side
    57,425.41x = 1,549,246,632.45
  5. Step 5: Solve for x
    x = 1,549,246,632.45/57,425.41
  6. Step 6: Final answer
    x = 26,978.42

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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.