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Finding the Fourth Proportional to 84,942.92, 127,413.66 and 21,762.92

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Solution

The fourth proportional to 84,942.92, 127,413.66 and 21,762.92 is: 32,644.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,942.92 : 127,413.66 = 21,762.92 : x
  2. Step 2: Convert to fraction form
    84,942.92/127,413.66 = 21,762.92/x
  3. Step 3: Cross multiply
    84,942.92x = 127,413.66 × 21,762.92
  4. Step 4: Simplify right side
    84,942.92x = 2,772,893,289.49
  5. Step 5: Solve for x
    x = 2,772,893,289.49/84,942.92
  6. Step 6: Final answer
    x = 32,644.20

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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.