Home / 76,853.36-106,057.43-42,861.89

Finding the Fourth Proportional to 76,853.36, 106,057.43 and 42,861.89

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Solution

The fourth proportional to 76,853.36, 106,057.43 and 42,861.89 is: 59,149.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,853.36 : 106,057.43 = 42,861.89 : x
  2. Step 2: Convert to fraction form
    76,853.36/106,057.43 = 42,861.89/x
  3. Step 3: Cross multiply
    76,853.36x = 106,057.43 × 42,861.89
  4. Step 4: Simplify right side
    76,853.36x = 4,545,821,898.34
  5. Step 5: Solve for x
    x = 4,545,821,898.34/76,853.36
  6. Step 6: Final answer
    x = 59,149.29

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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.