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Finding the Fourth Proportional to 45,584.68, 68,368.35 and 19,307.86

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Solution

The fourth proportional to 45,584.68, 68,368.35 and 19,307.86 is: 28,958.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,584.68 : 68,368.35 = 19,307.86 : x
  2. Step 2: Convert to fraction form
    45,584.68/68,368.35 = 19,307.86/x
  3. Step 3: Cross multiply
    45,584.68x = 68,368.35 × 19,307.86
  4. Step 4: Simplify right side
    45,584.68x = 1,320,046,530.23
  5. Step 5: Solve for x
    x = 1,320,046,530.23/45,584.68
  6. Step 6: Final answer
    x = 28,958.12

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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.