Home / 55,905.28-77,150.69-30,413.07

Finding the Fourth Proportional to 55,905.28, 77,150.69 and 30,413.07

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Solution

The fourth proportional to 55,905.28, 77,150.69 and 30,413.07 is: 41,970.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,905.28 : 77,150.69 = 30,413.07 : x
  2. Step 2: Convert to fraction form
    55,905.28/77,150.69 = 30,413.07/x
  3. Step 3: Cross multiply
    55,905.28x = 77,150.69 × 30,413.07
  4. Step 4: Simplify right side
    55,905.28x = 2,346,389,586.82
  5. Step 5: Solve for x
    x = 2,346,389,586.82/55,905.28
  6. Step 6: Final answer
    x = 41,970.81

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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.