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Finding the Fourth Proportional to 66,018.40, 91,097 and 37,725.92

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Solution

The fourth proportional to 66,018.40, 91,097 and 37,725.92 is: 52,056.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,018.40 : 91,097 = 37,725.92 : x
  2. Step 2: Convert to fraction form
    66,018.40/91,097 = 37,725.92/x
  3. Step 3: Cross multiply
    66,018.40x = 91,097 × 37,725.92
  4. Step 4: Simplify right side
    66,018.40x = 3,436,718,134.24
  5. Step 5: Solve for x
    x = 3,436,718,134.24/66,018.40
  6. Step 6: Final answer
    x = 52,056.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.