Home / 63,128.22-87,160.98-39,265.62

Finding the Fourth Proportional to 63,128.22, 87,160.98 and 39,265.62

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Solution

The fourth proportional to 63,128.22, 87,160.98 and 39,265.62 is: 54,213.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,128.22 : 87,160.98 = 39,265.62 : x
  2. Step 2: Convert to fraction form
    63,128.22/87,160.98 = 39,265.62/x
  3. Step 3: Cross multiply
    63,128.22x = 87,160.98 × 39,265.62
  4. Step 4: Simplify right side
    63,128.22x = 3,422,429,919.51
  5. Step 5: Solve for x
    x = 3,422,429,919.51/63,128.22
  6. Step 6: Final answer
    x = 54,213.95

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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.