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Finding the Fourth Proportional to 73,532, 110,298.36 and 18,128

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Solution

The fourth proportional to 73,532, 110,298.36 and 18,128 is: 27,192.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,532 : 110,298.36 = 18,128 : x
  2. Step 2: Convert to fraction form
    73,532/110,298.36 = 18,128/x
  3. Step 3: Cross multiply
    73,532x = 110,298.36 × 18,128
  4. Step 4: Simplify right side
    73,532x = 1,999,488,670.08
  5. Step 5: Solve for x
    x = 1,999,488,670.08/73,532
  6. Step 6: Final answer
    x = 27,192.09

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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.