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Finding the Fourth Proportional to 85,000.56, 127,340.88 and 49,835.76

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Solution

The fourth proportional to 85,000.56, 127,340.88 and 49,835.76 is: 74,659.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,000.56 : 127,340.88 = 49,835.76 : x
  2. Step 2: Convert to fraction form
    85,000.56/127,340.88 = 49,835.76/x
  3. Step 3: Cross multiply
    85,000.56x = 127,340.88 × 49,835.76
  4. Step 4: Simplify right side
    85,000.56x = 6,346,129,533.87
  5. Step 5: Solve for x
    x = 6,346,129,533.87/85,000.56
  6. Step 6: Final answer
    x = 74,659.86

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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.