Home / 51,221.18-76,781.87-23,148.30

Finding the Fourth Proportional to 51,221.18, 76,781.87 and 23,148.30

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Solution

The fourth proportional to 51,221.18, 76,781.87 and 23,148.30 is: 34,699.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,221.18 : 76,781.87 = 23,148.30 : x
  2. Step 2: Convert to fraction form
    51,221.18/76,781.87 = 23,148.30/x
  3. Step 3: Cross multiply
    51,221.18x = 76,781.87 × 23,148.30
  4. Step 4: Simplify right side
    51,221.18x = 1,777,369,761.32
  5. Step 5: Solve for x
    x = 1,777,369,761.32/51,221.18
  6. Step 6: Final answer
    x = 34,699.90

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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.