Home / 76,569.12-114,844.56-20,413.44

Finding the Fourth Proportional to 76,569.12, 114,844.56 and 20,413.44

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Solution

The fourth proportional to 76,569.12, 114,844.56 and 20,413.44 is: 30,617.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,569.12 : 114,844.56 = 20,413.44 : x
  2. Step 2: Convert to fraction form
    76,569.12/114,844.56 = 20,413.44/x
  3. Step 3: Cross multiply
    76,569.12x = 114,844.56 × 20,413.44
  4. Step 4: Simplify right side
    76,569.12x = 2,344,372,534.89
  5. Step 5: Solve for x
    x = 2,344,372,534.89/76,569.12
  6. Step 6: Final answer
    x = 30,617.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.