Home / 57,268.48-79,017.96-55,380.64

Finding the Fourth Proportional to 57,268.48, 79,017.96 and 55,380.64

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Solution

The fourth proportional to 57,268.48, 79,017.96 and 55,380.64 is: 76,413.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,268.48 : 79,017.96 = 55,380.64 : x
  2. Step 2: Convert to fraction form
    57,268.48/79,017.96 = 55,380.64/x
  3. Step 3: Cross multiply
    57,268.48x = 79,017.96 × 55,380.64
  4. Step 4: Simplify right side
    57,268.48x = 4,376,065,196.29
  5. Step 5: Solve for x
    x = 4,376,065,196.29/57,268.48
  6. Step 6: Final answer
    x = 76,413.15

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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.