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Finding the Fourth Proportional to 63,728.80, 95,590.40 and 19,354.56

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Solution

The fourth proportional to 63,728.80, 95,590.40 and 19,354.56 is: 29,030.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,728.80 : 95,590.40 = 19,354.56 : x
  2. Step 2: Convert to fraction form
    63,728.80/95,590.40 = 19,354.56/x
  3. Step 3: Cross multiply
    63,728.80x = 95,590.40 × 19,354.56
  4. Step 4: Simplify right side
    63,728.80x = 1,850,110,132.22
  5. Step 5: Solve for x
    x = 1,850,110,132.22/63,728.80
  6. Step 6: Final answer
    x = 29,030.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.