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Finding the Fourth Proportional to 84,817.91, 127,033.09 and 40,475.80

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Solution

The fourth proportional to 84,817.91, 127,033.09 and 40,475.80 is: 60,621.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,817.91 : 127,033.09 = 40,475.80 : x
  2. Step 2: Convert to fraction form
    84,817.91/127,033.09 = 40,475.80/x
  3. Step 3: Cross multiply
    84,817.91x = 127,033.09 × 40,475.80
  4. Step 4: Simplify right side
    84,817.91x = 5,141,765,741.84
  5. Step 5: Solve for x
    x = 5,141,765,741.84/84,817.91
  6. Step 6: Final answer
    x = 60,621.23

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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.