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Finding the Fourth Proportional to 99,695.35, 137,579.16 and 54,372.52

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Solution

The fourth proportional to 99,695.35, 137,579.16 and 54,372.52 is: 75,033.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,695.35 : 137,579.16 = 54,372.52 : x
  2. Step 2: Convert to fraction form
    99,695.35/137,579.16 = 54,372.52/x
  3. Step 3: Cross multiply
    99,695.35x = 137,579.16 × 54,372.52
  4. Step 4: Simplify right side
    99,695.35x = 7,480,525,628.68
  5. Step 5: Solve for x
    x = 7,480,525,628.68/99,695.35
  6. Step 6: Final answer
    x = 75,033.85

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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.