Home / 42,679.68-63,893.16-31,635.96

Finding the Fourth Proportional to 42,679.68, 63,893.16 and 31,635.96

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Solution

The fourth proportional to 42,679.68, 63,893.16 and 31,635.96 is: 47,360.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,679.68 : 63,893.16 = 31,635.96 : x
  2. Step 2: Convert to fraction form
    42,679.68/63,893.16 = 31,635.96/x
  3. Step 3: Cross multiply
    42,679.68x = 63,893.16 × 31,635.96
  4. Step 4: Simplify right side
    42,679.68x = 2,021,321,454.03
  5. Step 5: Solve for x
    x = 2,021,321,454.03/42,679.68
  6. Step 6: Final answer
    x = 47,360.28

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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.