Home / 60,120.35-90,179.61-20,677.81

Finding the Fourth Proportional to 60,120.35, 90,179.61 and 20,677.81

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Solution

The fourth proportional to 60,120.35, 90,179.61 and 20,677.81 is: 31,016.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,120.35 : 90,179.61 = 20,677.81 : x
  2. Step 2: Convert to fraction form
    60,120.35/90,179.61 = 20,677.81/x
  3. Step 3: Cross multiply
    60,120.35x = 90,179.61 × 20,677.81
  4. Step 4: Simplify right side
    60,120.35x = 1,864,716,693.55
  5. Step 5: Solve for x
    x = 1,864,716,693.55/60,120.35
  6. Step 6: Final answer
    x = 31,016.40

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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.