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Finding the Fourth Proportional to 90,687.66, 125,164.44 and 58,413.12

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Solution

The fourth proportional to 90,687.66, 125,164.44 and 58,413.12 is: 80,620.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,687.66 : 125,164.44 = 58,413.12 : x
  2. Step 2: Convert to fraction form
    90,687.66/125,164.44 = 58,413.12/x
  3. Step 3: Cross multiply
    90,687.66x = 125,164.44 × 58,413.12
  4. Step 4: Simplify right side
    90,687.66x = 7,311,245,453.45
  5. Step 5: Solve for x
    x = 7,311,245,453.45/90,687.66
  6. Step 6: Final answer
    x = 80,620.07

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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.