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Finding the Fourth Proportional to 85,179.41, 127,627.87 and 51,798.50

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Solution

The fourth proportional to 85,179.41, 127,627.87 and 51,798.50 is: 77,611.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,179.41 : 127,627.87 = 51,798.50 : x
  2. Step 2: Convert to fraction form
    85,179.41/127,627.87 = 51,798.50/x
  3. Step 3: Cross multiply
    85,179.41x = 127,627.87 × 51,798.50
  4. Step 4: Simplify right side
    85,179.41x = 6,610,932,224.20
  5. Step 5: Solve for x
    x = 6,610,932,224.20/85,179.41
  6. Step 6: Final answer
    x = 77,611.86

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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.