Home / 85,215.60-127,832.76-22,890.96

Finding the Fourth Proportional to 85,215.60, 127,832.76 and 22,890.96

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Solution

The fourth proportional to 85,215.60, 127,832.76 and 22,890.96 is: 34,338.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,215.60 : 127,832.76 = 22,890.96 : x
  2. Step 2: Convert to fraction form
    85,215.60/127,832.76 = 22,890.96/x
  3. Step 3: Cross multiply
    85,215.60x = 127,832.76 × 22,890.96
  4. Step 4: Simplify right side
    85,215.60x = 2,926,214,595.85
  5. Step 5: Solve for x
    x = 2,926,214,595.85/85,215.60
  6. Step 6: Final answer
    x = 34,338.95

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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.