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Finding the Fourth Proportional to 45,802.50, 68,713.55 and 14,211.87

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Solution

The fourth proportional to 45,802.50, 68,713.55 and 14,211.87 is: 21,320.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,802.50 : 68,713.55 = 14,211.87 : x
  2. Step 2: Convert to fraction form
    45,802.50/68,713.55 = 14,211.87/x
  3. Step 3: Cross multiply
    45,802.50x = 68,713.55 × 14,211.87
  4. Step 4: Simplify right side
    45,802.50x = 976,548,039.84
  5. Step 5: Solve for x
    x = 976,548,039.84/45,802.50
  6. Step 6: Final answer
    x = 21,320.85

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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.