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Finding the Fourth Proportional to 81,173.88, 112,024.38 and 45,363.96

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Solution

The fourth proportional to 81,173.88, 112,024.38 and 45,363.96 is: 62,604.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,173.88 : 112,024.38 = 45,363.96 : x
  2. Step 2: Convert to fraction form
    81,173.88/112,024.38 = 45,363.96/x
  3. Step 3: Cross multiply
    81,173.88x = 112,024.38 × 45,363.96
  4. Step 4: Simplify right side
    81,173.88x = 5,081,869,493.34
  5. Step 5: Solve for x
    x = 5,081,869,493.34/81,173.88
  6. Step 6: Final answer
    x = 62,604.74

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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.