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Finding the Fourth Proportional to 45,750.87, 68,646.03 and 17,690.68

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Solution

The fourth proportional to 45,750.87, 68,646.03 and 17,690.68 is: 26,543.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,750.87 : 68,646.03 = 17,690.68 : x
  2. Step 2: Convert to fraction form
    45,750.87/68,646.03 = 17,690.68/x
  3. Step 3: Cross multiply
    45,750.87x = 68,646.03 × 17,690.68
  4. Step 4: Simplify right side
    45,750.87x = 1,214,394,950.00
  5. Step 5: Solve for x
    x = 1,214,394,950.00/45,750.87
  6. Step 6: Final answer
    x = 26,543.65

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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.