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Finding the Fourth Proportional to 45,172, 67,765.56 and 14,001.04

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Solution

The fourth proportional to 45,172, 67,765.56 and 14,001.04 is: 21,003.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,172 : 67,765.56 = 14,001.04 : x
  2. Step 2: Convert to fraction form
    45,172/67,765.56 = 14,001.04/x
  3. Step 3: Cross multiply
    45,172x = 67,765.56 × 14,001.04
  4. Step 4: Simplify right side
    45,172x = 948,788,316.18
  5. Step 5: Solve for x
    x = 948,788,316.18/45,172
  6. Step 6: Final answer
    x = 21,003.90

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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.