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Finding the Fourth Proportional to 83,364.66, 115,043.22 and 45,638.91

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Solution

The fourth proportional to 83,364.66, 115,043.22 and 45,638.91 is: 62,981.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,364.66 : 115,043.22 = 45,638.91 : x
  2. Step 2: Convert to fraction form
    83,364.66/115,043.22 = 45,638.91/x
  3. Step 3: Cross multiply
    83,364.66x = 115,043.22 × 45,638.91
  4. Step 4: Simplify right side
    83,364.66x = 5,250,447,163.69
  5. Step 5: Solve for x
    x = 5,250,447,163.69/83,364.66
  6. Step 6: Final answer
    x = 62,981.69

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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.