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Finding the Fourth Proportional to 66,954.64, 100,432.53 and 17,034.78

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Solution

The fourth proportional to 66,954.64, 100,432.53 and 17,034.78 is: 25,552.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,954.64 : 100,432.53 = 17,034.78 : x
  2. Step 2: Convert to fraction form
    66,954.64/100,432.53 = 17,034.78/x
  3. Step 3: Cross multiply
    66,954.64x = 100,432.53 × 17,034.78
  4. Step 4: Simplify right side
    66,954.64x = 1,710,846,053.39
  5. Step 5: Solve for x
    x = 1,710,846,053.39/66,954.64
  6. Step 6: Final answer
    x = 25,552.32

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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.