Home / 55,917.56-77,166.24-30,767.06

Finding the Fourth Proportional to 55,917.56, 77,166.24 and 30,767.06

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Solution

The fourth proportional to 55,917.56, 77,166.24 and 30,767.06 is: 42,458.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,917.56 : 77,166.24 = 30,767.06 : x
  2. Step 2: Convert to fraction form
    55,917.56/77,166.24 = 30,767.06/x
  3. Step 3: Cross multiply
    55,917.56x = 77,166.24 × 30,767.06
  4. Step 4: Simplify right side
    55,917.56x = 2,374,178,413.59
  5. Step 5: Solve for x
    x = 2,374,178,413.59/55,917.56
  6. Step 6: Final answer
    x = 42,458.55

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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.