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Finding the Fourth Proportional to 45,648.76, 62,989.50 and 26,779

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Solution

The fourth proportional to 45,648.76, 62,989.50 and 26,779 is: 36,951.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,648.76 : 62,989.50 = 26,779 : x
  2. Step 2: Convert to fraction form
    45,648.76/62,989.50 = 26,779/x
  3. Step 3: Cross multiply
    45,648.76x = 62,989.50 × 26,779
  4. Step 4: Simplify right side
    45,648.76x = 1,686,795,820.50
  5. Step 5: Solve for x
    x = 1,686,795,820.50/45,648.76
  6. Step 6: Final answer
    x = 36,951.62

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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.