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Finding the Fourth Proportional to 80,741, 111,422.58 and 45,413

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Solution

The fourth proportional to 80,741, 111,422.58 and 45,413 is: 62,669.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,741 : 111,422.58 = 45,413 : x
  2. Step 2: Convert to fraction form
    80,741/111,422.58 = 45,413/x
  3. Step 3: Cross multiply
    80,741x = 111,422.58 × 45,413
  4. Step 4: Simplify right side
    80,741x = 5,060,033,625.54
  5. Step 5: Solve for x
    x = 5,060,033,625.54/80,741
  6. Step 6: Final answer
    x = 62,669.94

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1.5x scale

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.