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Finding the Fourth Proportional to 45,810.44, 68,717.73 and 12,529.76

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Solution

The fourth proportional to 45,810.44, 68,717.73 and 12,529.76 is: 18,795.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,810.44 : 68,717.73 = 12,529.76 : x
  2. Step 2: Convert to fraction form
    45,810.44/68,717.73 = 12,529.76/x
  3. Step 3: Cross multiply
    45,810.44x = 68,717.73 × 12,529.76
  4. Step 4: Simplify right side
    45,810.44x = 861,016,664.64
  5. Step 5: Solve for x
    x = 861,016,664.64/45,810.44
  6. Step 6: Final answer
    x = 18,795.21

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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.