Home / 81,439.92-112,413.11-50,827.41

Finding the Fourth Proportional to 81,439.92, 112,413.11 and 50,827.41

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Solution

The fourth proportional to 81,439.92, 112,413.11 and 50,827.41 is: 70,158.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,439.92 : 112,413.11 = 50,827.41 : x
  2. Step 2: Convert to fraction form
    81,439.92/112,413.11 = 50,827.41/x
  3. Step 3: Cross multiply
    81,439.92x = 112,413.11 × 50,827.41
  4. Step 4: Simplify right side
    81,439.92x = 5,713,666,977.21
  5. Step 5: Solve for x
    x = 5,713,666,977.21/81,439.92
  6. Step 6: Final answer
    x = 70,158.06

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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.