Home / 91,077.48-136,677.96-31,914

Finding the Fourth Proportional to 91,077.48, 136,677.96 and 31,914

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Solution

The fourth proportional to 91,077.48, 136,677.96 and 31,914 is: 47,892.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,077.48 : 136,677.96 = 31,914 : x
  2. Step 2: Convert to fraction form
    91,077.48/136,677.96 = 31,914/x
  3. Step 3: Cross multiply
    91,077.48x = 136,677.96 × 31,914
  4. Step 4: Simplify right side
    91,077.48x = 4,361,940,415.44
  5. Step 5: Solve for x
    x = 4,361,940,415.44/91,077.48
  6. Step 6: Final answer
    x = 47,892.63

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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.