Home / 60,120.51-90,179.85-20,677.96

Finding the Fourth Proportional to 60,120.51, 90,179.85 and 20,677.96

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Solution

The fourth proportional to 60,120.51, 90,179.85 and 20,677.96 is: 31,016.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,120.51 : 90,179.85 = 20,677.96 : x
  2. Step 2: Convert to fraction form
    60,120.51/90,179.85 = 20,677.96/x
  3. Step 3: Cross multiply
    60,120.51x = 90,179.85 × 20,677.96
  4. Step 4: Simplify right side
    60,120.51x = 1,864,735,331.11
  5. Step 5: Solve for x
    x = 1,864,735,331.11/60,120.51
  6. Step 6: Final answer
    x = 31,016.63

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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.