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Finding the Fourth Proportional to 73,800.42, 111,194.24 and 66,787.86

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Solution

The fourth proportional to 73,800.42, 111,194.24 and 66,787.86 is: 100,628.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,800.42 : 111,194.24 = 66,787.86 : x
  2. Step 2: Convert to fraction form
    73,800.42/111,194.24 = 66,787.86/x
  3. Step 3: Cross multiply
    73,800.42x = 111,194.24 × 66,787.86
  4. Step 4: Simplify right side
    73,800.42x = 7,426,424,999.99
  5. Step 5: Solve for x
    x = 7,426,424,999.99/73,800.42
  6. Step 6: Final answer
    x = 100,628.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.