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Finding the Fourth Proportional to 45,411.40, 68,044.20 and 29,810.80

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Solution

The fourth proportional to 45,411.40, 68,044.20 and 29,810.80 is: 44,668.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,411.40 : 68,044.20 = 29,810.80 : x
  2. Step 2: Convert to fraction form
    45,411.40/68,044.20 = 29,810.80/x
  3. Step 3: Cross multiply
    45,411.40x = 68,044.20 × 29,810.80
  4. Step 4: Simplify right side
    45,411.40x = 2,028,452,037.36
  5. Step 5: Solve for x
    x = 2,028,452,037.36/45,411.40
  6. Step 6: Final answer
    x = 44,668.34

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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.