Home / 81,596.72-122,157.33-60,629.70

Finding the Fourth Proportional to 81,596.72, 122,157.33 and 60,629.70

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Solution

The fourth proportional to 81,596.72, 122,157.33 and 60,629.70 is: 90,767.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,596.72 : 122,157.33 = 60,629.70 : x
  2. Step 2: Convert to fraction form
    81,596.72/122,157.33 = 60,629.70/x
  3. Step 3: Cross multiply
    81,596.72x = 122,157.33 × 60,629.70
  4. Step 4: Simplify right side
    81,596.72x = 7,406,362,270.70
  5. Step 5: Solve for x
    x = 7,406,362,270.70/81,596.72
  6. Step 6: Final answer
    x = 90,767.89

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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.