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Finding the Fourth Proportional to 66,006.40, 91,080.44 and 37,713.92

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Solution

The fourth proportional to 66,006.40, 91,080.44 and 37,713.92 is: 52,040.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,006.40 : 91,080.44 = 37,713.92 : x
  2. Step 2: Convert to fraction form
    66,006.40/91,080.44 = 37,713.92/x
  3. Step 3: Cross multiply
    66,006.40x = 91,080.44 × 37,713.92
  4. Step 4: Simplify right side
    66,006.40x = 3,435,000,427.72
  5. Step 5: Solve for x
    x = 3,435,000,427.72/66,006.40
  6. Step 6: Final answer
    x = 52,040.41

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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.