Home / 56,911.76-78,538.27-31,761.26

Finding the Fourth Proportional to 56,911.76, 78,538.27 and 31,761.26

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Solution

The fourth proportional to 56,911.76, 78,538.27 and 31,761.26 is: 43,830.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,911.76 : 78,538.27 = 31,761.26 : x
  2. Step 2: Convert to fraction form
    56,911.76/78,538.27 = 31,761.26/x
  3. Step 3: Cross multiply
    56,911.76x = 78,538.27 × 31,761.26
  4. Step 4: Simplify right side
    56,911.76x = 2,494,474,413.42
  5. Step 5: Solve for x
    x = 2,494,474,413.42/56,911.76
  6. Step 6: Final answer
    x = 43,830.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.