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Finding the Fourth Proportional to 81,603.25, 112,620.57 and 45,793.40

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Solution

The fourth proportional to 81,603.25, 112,620.57 and 45,793.40 is: 63,199.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,603.25 : 112,620.57 = 45,793.40 : x
  2. Step 2: Convert to fraction form
    81,603.25/112,620.57 = 45,793.40/x
  3. Step 3: Cross multiply
    81,603.25x = 112,620.57 × 45,793.40
  4. Step 4: Simplify right side
    81,603.25x = 5,157,278,669.46
  5. Step 5: Solve for x
    x = 5,157,278,669.46/81,603.25
  6. Step 6: Final answer
    x = 63,199.43

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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.