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Finding the Fourth Proportional to 84,756, 127,083.26 and 28,594.87

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Solution

The fourth proportional to 84,756, 127,083.26 and 28,594.87 is: 42,875.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,756 : 127,083.26 = 28,594.87 : x
  2. Step 2: Convert to fraction form
    84,756/127,083.26 = 28,594.87/x
  3. Step 3: Cross multiply
    84,756x = 127,083.26 × 28,594.87
  4. Step 4: Simplify right side
    84,756x = 3,633,928,520.49
  5. Step 5: Solve for x
    x = 3,633,928,520.49/84,756
  6. Step 6: Final answer
    x = 42,875.18

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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.