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Finding the Fourth Proportional to 45,690.94, 68,483.93 and 28,601.50

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Solution

The fourth proportional to 45,690.94, 68,483.93 and 28,601.50 is: 42,869.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,690.94 : 68,483.93 = 28,601.50 : x
  2. Step 2: Convert to fraction form
    45,690.94/68,483.93 = 28,601.50/x
  3. Step 3: Cross multiply
    45,690.94x = 68,483.93 × 28,601.50
  4. Step 4: Simplify right side
    45,690.94x = 1,958,743,123.90
  5. Step 5: Solve for x
    x = 1,958,743,123.90/45,690.94
  6. Step 6: Final answer
    x = 42,869.40

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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.