Home / 63,125.42-87,144.64-39,259.78

Finding the Fourth Proportional to 63,125.42, 87,144.64 and 39,259.78

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Solution

The fourth proportional to 63,125.42, 87,144.64 and 39,259.78 is: 54,198.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,125.42 : 87,144.64 = 39,259.78 : x
  2. Step 2: Convert to fraction form
    63,125.42/87,144.64 = 39,259.78/x
  3. Step 3: Cross multiply
    63,125.42x = 87,144.64 × 39,259.78
  4. Step 4: Simplify right side
    63,125.42x = 3,421,279,394.58
  5. Step 5: Solve for x
    x = 3,421,279,394.58/63,125.42
  6. Step 6: Final answer
    x = 54,198.12

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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.