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Finding the Fourth Proportional to 68,303.52, 102,455.28 and 18,383.72

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Solution

The fourth proportional to 68,303.52, 102,455.28 and 18,383.72 is: 27,575.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,303.52 : 102,455.28 = 18,383.72 : x
  2. Step 2: Convert to fraction form
    68,303.52/102,455.28 = 18,383.72/x
  3. Step 3: Cross multiply
    68,303.52x = 102,455.28 × 18,383.72
  4. Step 4: Simplify right side
    68,303.52x = 1,883,509,180.04
  5. Step 5: Solve for x
    x = 1,883,509,180.04/68,303.52
  6. Step 6: Final answer
    x = 27,575.58

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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.