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Finding the Fourth Proportional to 81,611.52, 112,625.94 and 45,804.25

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Solution

The fourth proportional to 81,611.52, 112,625.94 and 45,804.25 is: 63,211.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,611.52 : 112,625.94 = 45,804.25 : x
  2. Step 2: Convert to fraction form
    81,611.52/112,625.94 = 45,804.25/x
  3. Step 3: Cross multiply
    81,611.52x = 112,625.94 × 45,804.25
  4. Step 4: Simplify right side
    81,611.52x = 5,158,746,712.25
  5. Step 5: Solve for x
    x = 5,158,746,712.25/81,611.52
  6. Step 6: Final answer
    x = 63,211.01

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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.