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Finding the Fourth Proportional to 84,011.85, 115,939.17 and 45,774.44

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Solution

The fourth proportional to 84,011.85, 115,939.17 and 45,774.44 is: 63,170.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,011.85 : 115,939.17 = 45,774.44 : x
  2. Step 2: Convert to fraction form
    84,011.85/115,939.17 = 45,774.44/x
  3. Step 3: Cross multiply
    84,011.85x = 115,939.17 × 45,774.44
  4. Step 4: Simplify right side
    84,011.85x = 5,307,050,001.12
  5. Step 5: Solve for x
    x = 5,307,050,001.12/84,011.85
  6. Step 6: Final answer
    x = 63,170.26

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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.