Home / 85,072.20-127,636.71-37,680.85

Finding the Fourth Proportional to 85,072.20, 127,636.71 and 37,680.85

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Solution

The fourth proportional to 85,072.20, 127,636.71 and 37,680.85 is: 56,533.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,072.20 : 127,636.71 = 37,680.85 : x
  2. Step 2: Convert to fraction form
    85,072.20/127,636.71 = 37,680.85/x
  3. Step 3: Cross multiply
    85,072.20x = 127,636.71 × 37,680.85
  4. Step 4: Simplify right side
    85,072.20x = 4,809,459,724.00
  5. Step 5: Solve for x
    x = 4,809,459,724.00/85,072.20
  6. Step 6: Final answer
    x = 56,533.86

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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.