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Finding the Fourth Proportional to 63,645, 95,443.50 and 51,134.28

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Solution

The fourth proportional to 63,645, 95,443.50 and 51,134.28 is: 76,682.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,645 : 95,443.50 = 51,134.28 : x
  2. Step 2: Convert to fraction form
    63,645/95,443.50 = 51,134.28/x
  3. Step 3: Cross multiply
    63,645x = 95,443.50 × 51,134.28
  4. Step 4: Simplify right side
    63,645x = 4,880,434,653.18
  5. Step 5: Solve for x
    x = 4,880,434,653.18/63,645
  6. Step 6: Final answer
    x = 76,682.14

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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.