Home / 85,216.48-127,882.32-29,812.96

Finding the Fourth Proportional to 85,216.48, 127,882.32 and 29,812.96

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Solution

The fourth proportional to 85,216.48, 127,882.32 and 29,812.96 is: 44,739.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,216.48 : 127,882.32 = 29,812.96 : x
  2. Step 2: Convert to fraction form
    85,216.48/127,882.32 = 29,812.96/x
  3. Step 3: Cross multiply
    85,216.48x = 127,882.32 × 29,812.96
  4. Step 4: Simplify right side
    85,216.48x = 3,812,550,490.87
  5. Step 5: Solve for x
    x = 3,812,550,490.87/85,216.48
  6. Step 6: Final answer
    x = 44,739.59

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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.