Home / 63,981.40-95,979.30-19,607.80

Finding the Fourth Proportional to 63,981.40, 95,979.30 and 19,607.80

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Solution

The fourth proportional to 63,981.40, 95,979.30 and 19,607.80 is: 29,413.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,981.40 : 95,979.30 = 19,607.80 : x
  2. Step 2: Convert to fraction form
    63,981.40/95,979.30 = 19,607.80/x
  3. Step 3: Cross multiply
    63,981.40x = 95,979.30 × 19,607.80
  4. Step 4: Simplify right side
    63,981.40x = 1,881,942,918.54
  5. Step 5: Solve for x
    x = 1,881,942,918.54/63,981.40
  6. Step 6: Final answer
    x = 29,413.91

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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.