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Finding the Fourth Proportional to 45,450, 62,721 and 26,590.77

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Solution

The fourth proportional to 45,450, 62,721 and 26,590.77 is: 36,695.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,450 : 62,721 = 26,590.77 : x
  2. Step 2: Convert to fraction form
    45,450/62,721 = 26,590.77/x
  3. Step 3: Cross multiply
    45,450x = 62,721 × 26,590.77
  4. Step 4: Simplify right side
    45,450x = 1,667,799,685.17
  5. Step 5: Solve for x
    x = 1,667,799,685.17/45,450
  6. Step 6: Final answer
    x = 36,695.26

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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.