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Finding the Fourth Proportional to 63,706.56, 87,892.32 and 43,800

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Solution

The fourth proportional to 63,706.56, 87,892.32 and 43,800 is: 60,428.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,706.56 : 87,892.32 = 43,800 : x
  2. Step 2: Convert to fraction form
    63,706.56/87,892.32 = 43,800/x
  3. Step 3: Cross multiply
    63,706.56x = 87,892.32 × 43,800
  4. Step 4: Simplify right side
    63,706.56x = 3,849,683,616.00
  5. Step 5: Solve for x
    x = 3,849,683,616.00/63,706.56
  6. Step 6: Final answer
    x = 60,428.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.