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Finding the Fourth Proportional to 72,877.56, 100,617.44 and 59,480.76

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Solution

The fourth proportional to 72,877.56, 100,617.44 and 59,480.76 is: 82,121.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,877.56 : 100,617.44 = 59,480.76 : x
  2. Step 2: Convert to fraction form
    72,877.56/100,617.44 = 59,480.76/x
  3. Step 3: Cross multiply
    72,877.56x = 100,617.44 × 59,480.76
  4. Step 4: Simplify right side
    72,877.56x = 5,984,801,800.45
  5. Step 5: Solve for x
    x = 5,984,801,800.45/72,877.56
  6. Step 6: Final answer
    x = 82,121.33

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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.