Home / 83,432.88-115,135.83-45,706.86

Finding the Fourth Proportional to 83,432.88, 115,135.83 and 45,706.86

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Solution

The fourth proportional to 83,432.88, 115,135.83 and 45,706.86 is: 63,074.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,432.88 : 115,135.83 = 45,706.86 : x
  2. Step 2: Convert to fraction form
    83,432.88/115,135.83 = 45,706.86/x
  3. Step 3: Cross multiply
    83,432.88x = 115,135.83 × 45,706.86
  4. Step 4: Simplify right side
    83,432.88x = 5,262,497,262.79
  5. Step 5: Solve for x
    x = 5,262,497,262.79/83,432.88
  6. Step 6: Final answer
    x = 63,074.62

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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.