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Finding the Fourth Proportional to 68,145.79, 102,672.96 and 62,765.77

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Solution

The fourth proportional to 68,145.79, 102,672.96 and 62,765.77 is: 94,567.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,145.79 : 102,672.96 = 62,765.77 : x
  2. Step 2: Convert to fraction form
    68,145.79/102,672.96 = 62,765.77/x
  3. Step 3: Cross multiply
    68,145.79x = 102,672.96 × 62,765.77
  4. Step 4: Simplify right side
    68,145.79x = 6,444,347,392.58
  5. Step 5: Solve for x
    x = 6,444,347,392.58/68,145.79
  6. Step 6: Final answer
    x = 94,567.07

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.