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Finding the Fourth Proportional to 77,158.50, 106,481.75 and 45,327.12

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Solution

The fourth proportional to 77,158.50, 106,481.75 and 45,327.12 is: 62,553.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,158.50 : 106,481.75 = 45,327.12 : x
  2. Step 2: Convert to fraction form
    77,158.50/106,481.75 = 45,327.12/x
  3. Step 3: Cross multiply
    77,158.50x = 106,481.75 × 45,327.12
  4. Step 4: Simplify right side
    77,158.50x = 4,826,511,060.06
  5. Step 5: Solve for x
    x = 4,826,511,060.06/77,158.50
  6. Step 6: Final answer
    x = 62,553.20

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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.