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Finding the Fourth Proportional to 45,410.40, 68,042.70 and 29,809.80

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Solution

The fourth proportional to 45,410.40, 68,042.70 and 29,809.80 is: 44,666.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,410.40 : 68,042.70 = 29,809.80 : x
  2. Step 2: Convert to fraction form
    45,410.40/68,042.70 = 29,809.80/x
  3. Step 3: Cross multiply
    45,410.40x = 68,042.70 × 29,809.80
  4. Step 4: Simplify right side
    45,410.40x = 2,028,339,278.46
  5. Step 5: Solve for x
    x = 2,028,339,278.46/45,410.40
  6. Step 6: Final answer
    x = 44,666.84

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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.