Home / 258,540.93-387,817.88-71,554.05

Finding the Fourth Proportional to 258,540.93, 387,817.88 and 71,554.05

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Solution

The fourth proportional to 258,540.93, 387,817.88 and 71,554.05 is: 107,332.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,540.93 : 387,817.88 = 71,554.05 : x
  2. Step 2: Convert to fraction form
    258,540.93/387,817.88 = 71,554.05/x
  3. Step 3: Cross multiply
    258,540.93x = 387,817.88 × 71,554.05
  4. Step 4: Simplify right side
    258,540.93x = 27,749,939,618.64
  5. Step 5: Solve for x
    x = 27,749,939,618.64/258,540.93
  6. Step 6: Final answer
    x = 107,332.87

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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.