Home / 55,907.18-77,152.25-30,413.78

Finding the Fourth Proportional to 55,907.18, 77,152.25 and 30,413.78

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Solution

The fourth proportional to 55,907.18, 77,152.25 and 30,413.78 is: 41,971.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,907.18 : 77,152.25 = 30,413.78 : x
  2. Step 2: Convert to fraction form
    55,907.18/77,152.25 = 30,413.78/x
  3. Step 3: Cross multiply
    55,907.18x = 77,152.25 × 30,413.78
  4. Step 4: Simplify right side
    55,907.18x = 2,346,491,826.92
  5. Step 5: Solve for x
    x = 2,346,491,826.92/55,907.18
  6. Step 6: Final answer
    x = 41,971.21

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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.