Home / 45,144.90-67,821.12-31,848.48

Finding the Fourth Proportional to 45,144.90, 67,821.12 and 31,848.48

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Solution

The fourth proportional to 45,144.90, 67,821.12 and 31,848.48 is: 47,845.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,144.90 : 67,821.12 = 31,848.48 : x
  2. Step 2: Convert to fraction form
    45,144.90/67,821.12 = 31,848.48/x
  3. Step 3: Cross multiply
    45,144.90x = 67,821.12 × 31,848.48
  4. Step 4: Simplify right side
    45,144.90x = 2,159,999,583.90
  5. Step 5: Solve for x
    x = 2,159,999,583.90/45,144.90
  6. Step 6: Final answer
    x = 47,845.93

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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.