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Finding the Fourth Proportional to 63,101.75, 87,081.50 and 40,784.63

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Solution

The fourth proportional to 63,101.75, 87,081.50 and 40,784.63 is: 56,283.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,101.75 : 87,081.50 = 40,784.63 : x
  2. Step 2: Convert to fraction form
    63,101.75/87,081.50 = 40,784.63/x
  3. Step 3: Cross multiply
    63,101.75x = 87,081.50 × 40,784.63
  4. Step 4: Simplify right side
    63,101.75x = 3,551,586,553.42
  5. Step 5: Solve for x
    x = 3,551,586,553.42/63,101.75
  6. Step 6: Final answer
    x = 56,283.49

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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.