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Finding the Fourth Proportional to 66,994.59, 100,506.57 and 19,613.70

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Solution

The fourth proportional to 66,994.59, 100,506.57 and 19,613.70 is: 29,424.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,994.59 : 100,506.57 = 19,613.70 : x
  2. Step 2: Convert to fraction form
    66,994.59/100,506.57 = 19,613.70/x
  3. Step 3: Cross multiply
    66,994.59x = 100,506.57 × 19,613.70
  4. Step 4: Simplify right side
    66,994.59x = 1,971,305,712.01
  5. Step 5: Solve for x
    x = 1,971,305,712.01/66,994.59
  6. Step 6: Final answer
    x = 29,424.85

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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.