Home / 56,819.96-78,413.40-31,327.40

Finding the Fourth Proportional to 56,819.96, 78,413.40 and 31,327.40

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Solution

The fourth proportional to 56,819.96, 78,413.40 and 31,327.40 is: 43,232.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,819.96 : 78,413.40 = 31,327.40 : x
  2. Step 2: Convert to fraction form
    56,819.96/78,413.40 = 31,327.40/x
  3. Step 3: Cross multiply
    56,819.96x = 78,413.40 × 31,327.40
  4. Step 4: Simplify right side
    56,819.96x = 2,456,487,947.16
  5. Step 5: Solve for x
    x = 2,456,487,947.16/56,819.96
  6. Step 6: Final answer
    x = 43,232.83

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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.