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Finding the Fourth Proportional to 83,379, 115,064.10 and 45,652.44

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Solution

The fourth proportional to 83,379, 115,064.10 and 45,652.44 is: 63,000.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,379 : 115,064.10 = 45,652.44 : x
  2. Step 2: Convert to fraction form
    83,379/115,064.10 = 45,652.44/x
  3. Step 3: Cross multiply
    83,379x = 115,064.10 × 45,652.44
  4. Step 4: Simplify right side
    83,379x = 5,252,956,921.40
  5. Step 5: Solve for x
    x = 5,252,956,921.40/83,379
  6. Step 6: Final answer
    x = 63,000.96

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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.