Home / 83,311.72-114,897.49-59,064.78

Finding the Fourth Proportional to 83,311.72, 114,897.49 and 59,064.78

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Solution

The fourth proportional to 83,311.72, 114,897.49 and 59,064.78 is: 81,457.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,311.72 : 114,897.49 = 59,064.78 : x
  2. Step 2: Convert to fraction form
    83,311.72/114,897.49 = 59,064.78/x
  3. Step 3: Cross multiply
    83,311.72x = 114,897.49 × 59,064.78
  4. Step 4: Simplify right side
    83,311.72x = 6,786,394,969.40
  5. Step 5: Solve for x
    x = 6,786,394,969.40/83,311.72
  6. Step 6: Final answer
    x = 81,457.87

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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.