Home / 83,133.76-114,725.20-45,408.96

Finding the Fourth Proportional to 83,133.76, 114,725.20 and 45,408.96

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Solution

The fourth proportional to 83,133.76, 114,725.20 and 45,408.96 is: 62,664.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,133.76 : 114,725.20 = 45,408.96 : x
  2. Step 2: Convert to fraction form
    83,133.76/114,725.20 = 45,408.96/x
  3. Step 3: Cross multiply
    83,133.76x = 114,725.20 × 45,408.96
  4. Step 4: Simplify right side
    83,133.76x = 5,209,552,017.79
  5. Step 5: Solve for x
    x = 5,209,552,017.79/83,133.76
  6. Step 6: Final answer
    x = 62,664.70

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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.