Home / 42,485.78-63,691.40-16,173.02

Finding the Fourth Proportional to 42,485.78, 63,691.40 and 16,173.02

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Solution

The fourth proportional to 42,485.78, 63,691.40 and 16,173.02 is: 24,245.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,485.78 : 63,691.40 = 16,173.02 : x
  2. Step 2: Convert to fraction form
    42,485.78/63,691.40 = 16,173.02/x
  3. Step 3: Cross multiply
    42,485.78x = 63,691.40 × 16,173.02
  4. Step 4: Simplify right side
    42,485.78x = 1,030,082,286.03
  5. Step 5: Solve for x
    x = 1,030,082,286.03/42,485.78
  6. Step 6: Final answer
    x = 24,245.34

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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.