Home / 85,905.74-118,553.91-53,659.45

Finding the Fourth Proportional to 85,905.74, 118,553.91 and 53,659.45

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Solution

The fourth proportional to 85,905.74, 118,553.91 and 53,659.45 is: 74,052.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,905.74 : 118,553.91 = 53,659.45 : x
  2. Step 2: Convert to fraction form
    85,905.74/118,553.91 = 53,659.45/x
  3. Step 3: Cross multiply
    85,905.74x = 118,553.91 × 53,659.45
  4. Step 4: Simplify right side
    85,905.74x = 6,361,536,744.88
  5. Step 5: Solve for x
    x = 6,361,536,744.88/85,905.74
  6. Step 6: Final answer
    x = 74,052.53

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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.