Home / 84,455.48-126,713.82-39,516.50

Finding the Fourth Proportional to 84,455.48, 126,713.82 and 39,516.50

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Solution

The fourth proportional to 84,455.48, 126,713.82 and 39,516.50 is: 59,289.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,455.48 : 126,713.82 = 39,516.50 : x
  2. Step 2: Convert to fraction form
    84,455.48/126,713.82 = 39,516.50/x
  3. Step 3: Cross multiply
    84,455.48x = 126,713.82 × 39,516.50
  4. Step 4: Simplify right side
    84,455.48x = 5,007,286,668.03
  5. Step 5: Solve for x
    x = 5,007,286,668.03/84,455.48
  6. Step 6: Final answer
    x = 59,289.07

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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.