Home / 55,668.47-76,824.45-39,790.85

Finding the Fourth Proportional to 55,668.47, 76,824.45 and 39,790.85

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Solution

The fourth proportional to 55,668.47, 76,824.45 and 39,790.85 is: 54,912.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,668.47 : 76,824.45 = 39,790.85 : x
  2. Step 2: Convert to fraction form
    55,668.47/76,824.45 = 39,790.85/x
  3. Step 3: Cross multiply
    55,668.47x = 76,824.45 × 39,790.85
  4. Step 4: Simplify right side
    55,668.47x = 3,056,909,782.16
  5. Step 5: Solve for x
    x = 3,056,909,782.16/55,668.47
  6. Step 6: Final answer
    x = 54,912.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.