Home / 52,058.35-78,086.84-12,615.80

Finding the Fourth Proportional to 52,058.35, 78,086.84 and 12,615.80

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Solution

The fourth proportional to 52,058.35, 78,086.84 and 12,615.80 is: 18,923.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,058.35 : 78,086.84 = 12,615.80 : x
  2. Step 2: Convert to fraction form
    52,058.35/78,086.84 = 12,615.80/x
  3. Step 3: Cross multiply
    52,058.35x = 78,086.84 × 12,615.80
  4. Step 4: Simplify right side
    52,058.35x = 985,127,941.80
  5. Step 5: Solve for x
    x = 985,127,941.80/52,058.35
  6. Step 6: Final answer
    x = 18,923.54

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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.