Home / 80,645.93-121,017.54-28,092.32

Finding the Fourth Proportional to 80,645.93, 121,017.54 and 28,092.32

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Solution

The fourth proportional to 80,645.93, 121,017.54 and 28,092.32 is: 42,155.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,645.93 : 121,017.54 = 28,092.32 : x
  2. Step 2: Convert to fraction form
    80,645.93/121,017.54 = 28,092.32/x
  3. Step 3: Cross multiply
    80,645.93x = 121,017.54 × 28,092.32
  4. Step 4: Simplify right side
    80,645.93x = 3,399,663,413.37
  5. Step 5: Solve for x
    x = 3,399,663,413.37/80,645.93
  6. Step 6: Final answer
    x = 42,155.43

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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.