Home / 79,226.72-109,329.12-47,413.12

Finding the Fourth Proportional to 79,226.72, 109,329.12 and 47,413.12

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Solution

The fourth proportional to 79,226.72, 109,329.12 and 47,413.12 is: 65,427.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,226.72 : 109,329.12 = 47,413.12 : x
  2. Step 2: Convert to fraction form
    79,226.72/109,329.12 = 47,413.12/x
  3. Step 3: Cross multiply
    79,226.72x = 109,329.12 × 47,413.12
  4. Step 4: Simplify right side
    79,226.72x = 5,183,634,686.05
  5. Step 5: Solve for x
    x = 5,183,634,686.05/79,226.72
  6. Step 6: Final answer
    x = 65,427.86

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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.