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Finding the Fourth Proportional to 52,618.64, 78,919.44 and 19,330.52

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Solution

The fourth proportional to 52,618.64, 78,919.44 and 19,330.52 is: 28,992.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,618.64 : 78,919.44 = 19,330.52 : x
  2. Step 2: Convert to fraction form
    52,618.64/78,919.44 = 19,330.52/x
  3. Step 3: Cross multiply
    52,618.64x = 78,919.44 × 19,330.52
  4. Step 4: Simplify right side
    52,618.64x = 1,525,553,813.31
  5. Step 5: Solve for x
    x = 1,525,553,813.31/52,618.64
  6. Step 6: Final answer
    x = 28,992.65

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