Home / 85,015.72-127,520.34-22,685.68

Finding the Fourth Proportional to 85,015.72, 127,520.34 and 22,685.68

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Solution

The fourth proportional to 85,015.72, 127,520.34 and 22,685.68 is: 34,027.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,015.72 : 127,520.34 = 22,685.68 : x
  2. Step 2: Convert to fraction form
    85,015.72/127,520.34 = 22,685.68/x
  3. Step 3: Cross multiply
    85,015.72x = 127,520.34 × 22,685.68
  4. Step 4: Simplify right side
    85,015.72x = 2,892,885,626.73
  5. Step 5: Solve for x
    x = 2,892,885,626.73/85,015.72
  6. Step 6: Final answer
    x = 34,027.66

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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.