Home / 55,413.60-76,444.20-40,282.80

Finding the Fourth Proportional to 55,413.60, 76,444.20 and 40,282.80

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Solution

The fourth proportional to 55,413.60, 76,444.20 and 40,282.80 is: 55,570.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,413.60 : 76,444.20 = 40,282.80 : x
  2. Step 2: Convert to fraction form
    55,413.60/76,444.20 = 40,282.80/x
  3. Step 3: Cross multiply
    55,413.60x = 76,444.20 × 40,282.80
  4. Step 4: Simplify right side
    55,413.60x = 3,079,386,419.76
  5. Step 5: Solve for x
    x = 3,079,386,419.76/55,413.60
  6. Step 6: Final answer
    x = 55,570.95

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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.