Home / 60,207.76-90,317.60-20,759.68

Finding the Fourth Proportional to 60,207.76, 90,317.60 and 20,759.68

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Solution

The fourth proportional to 60,207.76, 90,317.60 and 20,759.68 is: 31,141.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,207.76 : 90,317.60 = 20,759.68 : x
  2. Step 2: Convert to fraction form
    60,207.76/90,317.60 = 20,759.68/x
  3. Step 3: Cross multiply
    60,207.76x = 90,317.60 × 20,759.68
  4. Step 4: Simplify right side
    60,207.76x = 1,874,964,474.37
  5. Step 5: Solve for x
    x = 1,874,964,474.37/60,207.76
  6. Step 6: Final answer
    x = 31,141.58

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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.