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Finding the Fourth Proportional to 63,130.96, 87,083.96 and 40,461.90

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Solution

The fourth proportional to 63,130.96, 87,083.96 and 40,461.90 is: 55,813.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,130.96 : 87,083.96 = 40,461.90 : x
  2. Step 2: Convert to fraction form
    63,130.96/87,083.96 = 40,461.90/x
  3. Step 3: Cross multiply
    63,130.96x = 87,083.96 × 40,461.90
  4. Step 4: Simplify right side
    63,130.96x = 3,523,582,481.12
  5. Step 5: Solve for x
    x = 3,523,582,481.12/63,130.96
  6. Step 6: Final answer
    x = 55,813.86

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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.