Home / 63,137.58-87,161.40-39,271.92

Finding the Fourth Proportional to 63,137.58, 87,161.40 and 39,271.92

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Solution

The fourth proportional to 63,137.58, 87,161.40 and 39,271.92 is: 54,214.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,137.58 : 87,161.40 = 39,271.92 : x
  2. Step 2: Convert to fraction form
    63,137.58/87,161.40 = 39,271.92/x
  3. Step 3: Cross multiply
    63,137.58x = 87,161.40 × 39,271.92
  4. Step 4: Simplify right side
    63,137.58x = 3,422,995,527.89
  5. Step 5: Solve for x
    x = 3,422,995,527.89/63,137.58
  6. Step 6: Final answer
    x = 54,214.87

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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.