Home / 63,634.12-87,859.02-39,771.52

Finding the Fourth Proportional to 63,634.12, 87,859.02 and 39,771.52

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Solution

The fourth proportional to 63,634.12, 87,859.02 and 39,771.52 is: 54,912.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,634.12 : 87,859.02 = 39,771.52 : x
  2. Step 2: Convert to fraction form
    63,634.12/87,859.02 = 39,771.52/x
  3. Step 3: Cross multiply
    63,634.12x = 87,859.02 × 39,771.52
  4. Step 4: Simplify right side
    63,634.12x = 3,494,286,771.11
  5. Step 5: Solve for x
    x = 3,494,286,771.11/63,634.12
  6. Step 6: Final answer
    x = 54,912.16

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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.