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Finding the Fourth Proportional to 84,797.64, 127,221.96 and 51,100.22

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Solution

The fourth proportional to 84,797.64, 127,221.96 and 51,100.22 is: 76,665.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,797.64 : 127,221.96 = 51,100.22 : x
  2. Step 2: Convert to fraction form
    84,797.64/127,221.96 = 51,100.22/x
  3. Step 3: Cross multiply
    84,797.64x = 127,221.96 × 51,100.22
  4. Step 4: Simplify right side
    84,797.64x = 6,501,070,144.83
  5. Step 5: Solve for x
    x = 6,501,070,144.83/84,797.64
  6. Step 6: Final answer
    x = 76,665.70

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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.