Home / 55,289.76-76,297-31,413.12

Finding the Fourth Proportional to 55,289.76, 76,297 and 31,413.12

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Solution

The fourth proportional to 55,289.76, 76,297 and 31,413.12 is: 43,348.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,289.76 : 76,297 = 31,413.12 : x
  2. Step 2: Convert to fraction form
    55,289.76/76,297 = 31,413.12/x
  3. Step 3: Cross multiply
    55,289.76x = 76,297 × 31,413.12
  4. Step 4: Simplify right side
    55,289.76x = 2,396,726,816.64
  5. Step 5: Solve for x
    x = 2,396,726,816.64/55,289.76
  6. Step 6: Final answer
    x = 43,348.48

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1.5x scale

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.