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Finding the Fourth Proportional to 80,354.45, 120,554.23 and 29,752.71

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Solution

The fourth proportional to 80,354.45, 120,554.23 and 29,752.71 is: 44,637.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,354.45 : 120,554.23 = 29,752.71 : x
  2. Step 2: Convert to fraction form
    80,354.45/120,554.23 = 29,752.71/x
  3. Step 3: Cross multiply
    80,354.45x = 120,554.23 × 29,752.71
  4. Step 4: Simplify right side
    80,354.45x = 3,586,815,044.46
  5. Step 5: Solve for x
    x = 3,586,815,044.46/80,354.45
  6. Step 6: Final answer
    x = 44,637.42

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1.5x scale

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.