Home / 56,518.93-77,991.84-31,021.25

Finding the Fourth Proportional to 56,518.93, 77,991.84 and 31,021.25

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Solution

The fourth proportional to 56,518.93, 77,991.84 and 31,021.25 is: 42,806.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,518.93 : 77,991.84 = 31,021.25 : x
  2. Step 2: Convert to fraction form
    56,518.93/77,991.84 = 31,021.25/x
  3. Step 3: Cross multiply
    56,518.93x = 77,991.84 × 31,021.25
  4. Step 4: Simplify right side
    56,518.93x = 2,419,403,976.64
  5. Step 5: Solve for x
    x = 2,419,403,976.64/56,518.93
  6. Step 6: Final answer
    x = 42,806.97

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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.