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Finding the Fourth Proportional to 72,028.56, 108,002.35 and 49,565.64

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Solution

The fourth proportional to 72,028.56, 108,002.35 and 49,565.64 is: 74,320.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,028.56 : 108,002.35 = 49,565.64 : x
  2. Step 2: Convert to fraction form
    72,028.56/108,002.35 = 49,565.64/x
  3. Step 3: Cross multiply
    72,028.56x = 108,002.35 × 49,565.64
  4. Step 4: Simplify right side
    72,028.56x = 5,353,205,787.41
  5. Step 5: Solve for x
    x = 5,353,205,787.41/72,028.56
  6. Step 6: Final answer
    x = 74,320.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.