Home / 81,462.48-122,199.36-34,059.64

Finding the Fourth Proportional to 81,462.48, 122,199.36 and 34,059.64

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Solution

The fourth proportional to 81,462.48, 122,199.36 and 34,059.64 is: 51,091.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,462.48 : 122,199.36 = 34,059.64 : x
  2. Step 2: Convert to fraction form
    81,462.48/122,199.36 = 34,059.64/x
  3. Step 3: Cross multiply
    81,462.48x = 122,199.36 × 34,059.64
  4. Step 4: Simplify right side
    81,462.48x = 4,162,066,209.83
  5. Step 5: Solve for x
    x = 4,162,066,209.83/81,462.48
  6. Step 6: Final answer
    x = 51,091.82

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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.