Home / 81,468.90-122,203.35-48,171.83

Finding the Fourth Proportional to 81,468.90, 122,203.35 and 48,171.83

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Solution

The fourth proportional to 81,468.90, 122,203.35 and 48,171.83 is: 72,257.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,468.90 : 122,203.35 = 48,171.83 : x
  2. Step 2: Convert to fraction form
    81,468.90/122,203.35 = 48,171.83/x
  3. Step 3: Cross multiply
    81,468.90x = 122,203.35 × 48,171.83
  4. Step 4: Simplify right side
    81,468.90x = 5,886,758,390.61
  5. Step 5: Solve for x
    x = 5,886,758,390.61/81,468.90
  6. Step 6: Final answer
    x = 72,257.74

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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.