Home / 66,780.47-92,156.18-38,099.39

Finding the Fourth Proportional to 66,780.47, 92,156.18 and 38,099.39

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Solution

The fourth proportional to 66,780.47, 92,156.18 and 38,099.39 is: 52,576.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,780.47 : 92,156.18 = 38,099.39 : x
  2. Step 2: Convert to fraction form
    66,780.47/92,156.18 = 38,099.39/x
  3. Step 3: Cross multiply
    66,780.47x = 92,156.18 × 38,099.39
  4. Step 4: Simplify right side
    66,780.47x = 3,511,093,591.45
  5. Step 5: Solve for x
    x = 3,511,093,591.45/66,780.47
  6. Step 6: Final answer
    x = 52,576.66

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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.