Home / 63,110.52-87,090.12-39,231.72

Finding the Fourth Proportional to 63,110.52, 87,090.12 and 39,231.72

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Solution

The fourth proportional to 63,110.52, 87,090.12 and 39,231.72 is: 54,138.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,110.52 : 87,090.12 = 39,231.72 : x
  2. Step 2: Convert to fraction form
    63,110.52/87,090.12 = 39,231.72/x
  3. Step 3: Cross multiply
    63,110.52x = 87,090.12 × 39,231.72
  4. Step 4: Simplify right side
    63,110.52x = 3,416,695,202.61
  5. Step 5: Solve for x
    x = 3,416,695,202.61/63,110.52
  6. Step 6: Final answer
    x = 54,138.28

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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.