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Finding the Fourth Proportional to 85,349.84, 127,917.24 and 40,940.24

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Solution

The fourth proportional to 85,349.84, 127,917.24 and 40,940.24 is: 61,358.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,349.84 : 127,917.24 = 40,940.24 : x
  2. Step 2: Convert to fraction form
    85,349.84/127,917.24 = 40,940.24/x
  3. Step 3: Cross multiply
    85,349.84x = 127,917.24 × 40,940.24
  4. Step 4: Simplify right side
    85,349.84x = 5,236,962,505.74
  5. Step 5: Solve for x
    x = 5,236,962,505.74/85,349.84
  6. Step 6: Final answer
    x = 61,358.79

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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.