Home / 52,031.89-78,047.97-12,588.94

Finding the Fourth Proportional to 52,031.89, 78,047.97 and 12,588.94

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Solution

The fourth proportional to 52,031.89, 78,047.97 and 12,588.94 is: 18,883.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,031.89 : 78,047.97 = 12,588.94 : x
  2. Step 2: Convert to fraction form
    52,031.89/78,047.97 = 12,588.94/x
  3. Step 3: Cross multiply
    52,031.89x = 78,047.97 × 12,588.94
  4. Step 4: Simplify right side
    52,031.89x = 982,541,211.45
  5. Step 5: Solve for x
    x = 982,541,211.45/52,031.89
  6. Step 6: Final answer
    x = 18,883.44

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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.