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Finding the Fourth Proportional to 84,998.70, 127,502.61 and 25,836.30

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Solution

The fourth proportional to 84,998.70, 127,502.61 and 25,836.30 is: 38,755.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,998.70 : 127,502.61 = 25,836.30 : x
  2. Step 2: Convert to fraction form
    84,998.70/127,502.61 = 25,836.30/x
  3. Step 3: Cross multiply
    84,998.70x = 127,502.61 × 25,836.30
  4. Step 4: Simplify right side
    84,998.70x = 3,294,195,682.74
  5. Step 5: Solve for x
    x = 3,294,195,682.74/84,998.70
  6. Step 6: Final answer
    x = 38,755.84

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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.