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Finding the Fourth Proportional to 45,581.68, 68,363.84 and 19,304.88

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Solution

The fourth proportional to 45,581.68, 68,363.84 and 19,304.88 is: 28,953.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,581.68 : 68,363.84 = 19,304.88 : x
  2. Step 2: Convert to fraction form
    45,581.68/68,363.84 = 19,304.88/x
  3. Step 3: Cross multiply
    45,581.68x = 68,363.84 × 19,304.88
  4. Step 4: Simplify right side
    45,581.68x = 1,319,755,727.54
  5. Step 5: Solve for x
    x = 1,319,755,727.54/45,581.68
  6. Step 6: Final answer
    x = 28,953.64

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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.