Home / 258,559.50-387,861.93-71,572.62

Finding the Fourth Proportional to 258,559.50, 387,861.93 and 71,572.62

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Solution

The fourth proportional to 258,559.50, 387,861.93 and 71,572.62 is: 107,365.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,559.50 : 387,861.93 = 71,572.62 : x
  2. Step 2: Convert to fraction form
    258,559.50/387,861.93 = 71,572.62/x
  3. Step 3: Cross multiply
    258,559.50x = 387,861.93 × 71,572.62
  4. Step 4: Simplify right side
    258,559.50x = 27,760,294,528.36
  5. Step 5: Solve for x
    x = 27,760,294,528.36/258,559.50
  6. Step 6: Final answer
    x = 107,365.21

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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.