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Finding the Fourth Proportional to 45,325.67, 67,978.20 and 17,235.74

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Solution

The fourth proportional to 45,325.67, 67,978.20 and 17,235.74 is: 25,849.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,325.67 : 67,978.20 = 17,235.74 : x
  2. Step 2: Convert to fraction form
    45,325.67/67,978.20 = 17,235.74/x
  3. Step 3: Cross multiply
    45,325.67x = 67,978.20 × 17,235.74
  4. Step 4: Simplify right side
    45,325.67x = 1,171,654,240.98
  5. Step 5: Solve for x
    x = 1,171,654,240.98/45,325.67
  6. Step 6: Final answer
    x = 25,849.69

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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.