Home / 56,390.97-84,587.82-18,951.57

Finding the Fourth Proportional to 56,390.97, 84,587.82 and 18,951.57

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Solution

The fourth proportional to 56,390.97, 84,587.82 and 18,951.57 is: 28,427.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,390.97 : 84,587.82 = 18,951.57 : x
  2. Step 2: Convert to fraction form
    56,390.97/84,587.82 = 18,951.57/x
  3. Step 3: Cross multiply
    56,390.97x = 84,587.82 × 18,951.57
  4. Step 4: Simplify right side
    56,390.97x = 1,603,071,991.88
  5. Step 5: Solve for x
    x = 1,603,071,991.88/56,390.97
  6. Step 6: Final answer
    x = 28,427.81

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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.