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Finding the Fourth Proportional to 84,573.52, 116,600.82 and 72,763.72

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Solution

The fourth proportional to 84,573.52, 116,600.82 and 72,763.72 is: 100,318.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,573.52 : 116,600.82 = 72,763.72 : x
  2. Step 2: Convert to fraction form
    84,573.52/116,600.82 = 72,763.72/x
  3. Step 3: Cross multiply
    84,573.52x = 116,600.82 × 72,763.72
  4. Step 4: Simplify right side
    84,573.52x = 8,484,309,418.25
  5. Step 5: Solve for x
    x = 8,484,309,418.25/84,573.52
  6. Step 6: Final answer
    x = 100,318.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.