Home / 84,135.12-116,102.62-45,893.76

Finding the Fourth Proportional to 84,135.12, 116,102.62 and 45,893.76

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Solution

The fourth proportional to 84,135.12, 116,102.62 and 45,893.76 is: 63,331.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,135.12 : 116,102.62 = 45,893.76 : x
  2. Step 2: Convert to fraction form
    84,135.12/116,102.62 = 45,893.76/x
  3. Step 3: Cross multiply
    84,135.12x = 116,102.62 × 45,893.76
  4. Step 4: Simplify right side
    84,135.12x = 5,328,385,777.65
  5. Step 5: Solve for x
    x = 5,328,385,777.65/84,135.12
  6. Step 6: Final answer
    x = 63,331.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.