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Finding the Fourth Proportional to 81,604.59, 112,611.65 and 45,795.17

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Solution

The fourth proportional to 81,604.59, 112,611.65 and 45,795.17 is: 63,195.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,604.59 : 112,611.65 = 45,795.17 : x
  2. Step 2: Convert to fraction form
    81,604.59/112,611.65 = 45,795.17/x
  3. Step 3: Cross multiply
    81,604.59x = 112,611.65 × 45,795.17
  4. Step 4: Simplify right side
    81,604.59x = 5,157,068,863.70
  5. Step 5: Solve for x
    x = 5,157,068,863.70/81,604.59
  6. Step 6: Final answer
    x = 63,195.82

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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.