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Finding the Fourth Proportional to 68,377.04, 102,565.56 and 19,129.04

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Solution

The fourth proportional to 68,377.04, 102,565.56 and 19,129.04 is: 28,693.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,377.04 : 102,565.56 = 19,129.04 : x
  2. Step 2: Convert to fraction form
    68,377.04/102,565.56 = 19,129.04/x
  3. Step 3: Cross multiply
    68,377.04x = 102,565.56 × 19,129.04
  4. Step 4: Simplify right side
    68,377.04x = 1,961,980,699.86
  5. Step 5: Solve for x
    x = 1,961,980,699.86/68,377.04
  6. Step 6: Final answer
    x = 28,693.56

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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.