Home / 87,173.69-130,635.78-49,656.29

Finding the Fourth Proportional to 87,173.69, 130,635.78 and 49,656.29

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Solution

The fourth proportional to 87,173.69, 130,635.78 and 49,656.29 is: 74,413.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,173.69 : 130,635.78 = 49,656.29 : x
  2. Step 2: Convert to fraction form
    87,173.69/130,635.78 = 49,656.29/x
  3. Step 3: Cross multiply
    87,173.69x = 130,635.78 × 49,656.29
  4. Step 4: Simplify right side
    87,173.69x = 6,486,888,176.06
  5. Step 5: Solve for x
    x = 6,486,888,176.06/87,173.69
  6. Step 6: Final answer
    x = 74,413.37

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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.