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Finding the Fourth Proportional to 83,393.70, 115,083.39 and 45,153.27

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Solution

The fourth proportional to 83,393.70, 115,083.39 and 45,153.27 is: 62,311.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,393.70 : 115,083.39 = 45,153.27 : x
  2. Step 2: Convert to fraction form
    83,393.70/115,083.39 = 45,153.27/x
  3. Step 3: Cross multiply
    83,393.70x = 115,083.39 × 45,153.27
  4. Step 4: Simplify right side
    83,393.70x = 5,196,391,381.19
  5. Step 5: Solve for x
    x = 5,196,391,381.19/83,393.70
  6. Step 6: Final answer
    x = 62,311.56

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1.5x scale

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.