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Finding the Fourth Proportional to 84,593.94, 126,890.91 and 28,429.62

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Solution

The fourth proportional to 84,593.94, 126,890.91 and 28,429.62 is: 42,644.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,593.94 : 126,890.91 = 28,429.62 : x
  2. Step 2: Convert to fraction form
    84,593.94/126,890.91 = 28,429.62/x
  3. Step 3: Cross multiply
    84,593.94x = 126,890.91 × 28,429.62
  4. Step 4: Simplify right side
    84,593.94x = 3,607,460,352.75
  5. Step 5: Solve for x
    x = 3,607,460,352.75/84,593.94
  6. Step 6: Final answer
    x = 42,644.43

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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.