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Finding the Fourth Proportional to 66,876.48, 100,315.11 and 16,956.69

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Solution

The fourth proportional to 66,876.48, 100,315.11 and 16,956.69 is: 25,435.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,876.48 : 100,315.11 = 16,956.69 : x
  2. Step 2: Convert to fraction form
    66,876.48/100,315.11 = 16,956.69/x
  3. Step 3: Cross multiply
    66,876.48x = 100,315.11 × 16,956.69
  4. Step 4: Simplify right side
    66,876.48x = 1,701,012,222.59
  5. Step 5: Solve for x
    x = 1,701,012,222.59/66,876.48
  6. Step 6: Final answer
    x = 25,435.13

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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.